Or in my case, my wife shows me the video with a “I told you so” look. 
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That looks like a dram type bottle. 4 drams = 15mls.
Shopping on Amazon for bottles is not how you want to spend your afternoon. No one knows what they’re talking about, the measurements are all off and no one lists the opening sizes of their bottles like a real bottle seller does. Most bottles are Boston Round types and two 15mls can be different in diameter and height. Shopping for bottles should not be this hard. SKS Bottles know their stuff but out of stock in the size I want both in drams and mls.
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That’s what I like about Aliexpress they have just about every bottle I need. The items show product (and comparison) shots, descriptions and measurements. They use metric which is our unit of measure in NZ (which is probably pain if you’re in the US). Now, if they could just get their shipping times down to 5 days…
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In the US we’ve had the saying, “It’s on a slow boat from China.” for a very long time. I still chuckle whenever I read someone mentioning China and delivery in the same sentence.
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The irony is, China post is almost outperforming the USPS at this point.
When they can get parcels here in 10-15 days, including the customs wait… And it takes 10-15 days (or more) for priority mail to only go halfway across the country (NY or NJ to the Mississippi River line), yeah.
Can’t bitch about the ‘slow boat’ anymore when our horse only has three legs (evidently).
/signed
Fed up with USPS
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I sent pkgs to east and west coasts this week that arrived pretty much on time. Yet I waited 16 days for a pkg from less than 200 miles away. 
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Sad, but funny. 
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My take on that is different. Since becoming a vaper I prefer the metric system and actually feel I understand it better than the Imperial system. Much easier to read and make sense of. The big pita on Amazon is the sellers are all over the place with measurements, showing them as either fractional, decimal or metric. Now I have to know all systems! Forget that, I’m into making life simpler. Here’s a pic of two 10ml bottles. Obviously, the one on the right has headroom and what I would want for the GC. I thought it was a 15ml until I saw it on a bottle website and saw Amazon reviewers complaining about bottle dimensions.
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I have had 5 packages shipped from the US via USPS to New Zealand. Two packages left the east coast via LA flying directly to NZ and arrived 9 days and 12 days respectively (normally 4 - 9 days).
The other three departed the east coast via New York (after at least 7 days of internal transit stops) and all tranisted via Japan. One took 23 days, one took 36 days and the other is still in transit ex Japan (12 days and counting) 
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LOL… Just got notification that an order from Fasttech has landed in NZ and is enroute for delivery. Thats 10 days from China folks! 
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Now that would piss me off! 
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Glad your adapting to metrics @muth ! It such an easy way to calculate just about anything!
However, there are some things that are just better in inches 
… also car tires (tyres), TV screen sizes (cannot visualize a 140cm screen) and who ever could imagine a Footlong Sub being called a 30cm Sub? 
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I just spent 22 years using the metric system. I agree that for most things it’s a better system. However others aren’t. Take Celsius, for example. In August in the UAE one would say, ‘It is 50 degrees today (Celsius). That just doesn’t convey the situation like,’ It’s a hundred and fucking twenty - two degrees out there ! (Fahrenheit) ’ See what I mean?
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Me! 
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You’ve changed…
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That’s my goal…change is good!
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Personally I hate the metric system for machining. It would be impossible to pinpoint my first exposure to machining and machine tools but it would be in the 1960’s. I learned to work (and think) in thousandths of an inch and the lead-screws and tooling are made and calibrated accordingly. Yes I have DRO’s (digital readouts) which would convert but rarely use them for that. One is no more accurate than the other but due to habit I want one notch on my machine dials to equal one thousandth. I can add decimal equivalents in my head instead of using a conversion chart.
Over this period of time I have accumulated tens of thousands +++ of dollars in machine tools such as micrometers, dial indicators, cutting tools, and a seemingly endless list of S.A.E. (standard american equipment) tools and materials. For me, converting to metrics is a constant pain in the ass. Another thing that people may not understand is that buying metric sized materials in the US when available, (NOT), doubles my costs. For precision I use collets (ER 40 ) for work holding and have had to purchase metric and imperial sizes again doubling my costs. I could use that $300 for other things. I recently bought machinery with american lead screws and dials. Replacing my machinery to metric calibration would be like taking a bulldozer to my home because the lumber dimensions are in inch sizes. Nope.
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If I’m not mistaken, the US is a world leader when it comes to very high quality machining. That granular precision might be a reason why.
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I discovered that 5ml of 70/30 ration doesn’t need to be heated first. The GC will heat it up enough to work.
@anon36682625 do you think that puts undo stress on the GC and or the rotary tool?
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Yes. If there is heat there is friction. 5 ml is too small to use. Even though there is a ball bearing on top and Teflon lower bushing, the liquid needs to cool and lubricate.
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