Ahhhhh @Oldguynew2diy, ok. Sorry, wasn’t sure about “scraping”.
Yes, @rcleven answered it above. Most times with freshly built, OR, freshly bought coils, there WILL be hot spots. You may not even know what that looks like, but once you fire a NOT ready coil, you will. Instead of the coil glowing from the middle, going to the outside with a nice even glow, you’ll see bright red hit spots, dark spots, just basically uneven heating. “Pinching”, and “stroking” is often required to remove those hot and cold spots, and make the coils fire, nice and evenly.
Many of us who’ve been doing it for awhile, it just becomes second nature, and it will quickly for you as well. Coil Master made one of the best kits out there, but it’s hard to find now, BUT, enter the NOT DIY Coil Kit at Amazon …
We have to call it a Building Mechanics, Blahzitty Blah, so no one knows hehe.
If you’re going to be getting into coiling, that’s what you need. It has all the size “rods” you need to form coils around, sharp tweezers to pull cotton through, ceramic tweezers (as @rcleven mentioned), for pinching, and stroking your coils, wire cutters to trim coils, scissors to cut your cotton wicks, and even some cheap screw drivers, needle nose pliers, and a coil checker/tester.
I have to pinch and stroke my coils, even using single wire coils. Most times I start to pulse a brand new coil to see how bad it is. Hot spots, cool spots, completely uneven heating. Take the ceramics and pinch the coil together to allow for better contact, and then take the tips, and “scrape” or “stroke” across the coils. Start pulse, pulse, pulsing the fire button again, and most times it’s either fixed, or needs one more round.
Very easy to do.