Hi Dan, here I am. But I generally use NicSalts in my mixes. So I don’t need any throat hit from the Nic in a tester.
But this is a free country-everyone to the own liking.
For the size. I start at 10 ml. If it’s awesome, I mix another 30 ml with NicSalt. If I still like it after several days, I go for bigger batches. There are not many recipes which come to that stage.