Here is hand writhing .. the idea it to do a thick and thin line in one consistent motion—- so you have to move through the letters at the same time your finger pulls the trigger and let’s go some …. Pull back to be thicker and the trigger moves forward but not so much the paint stops to go thinner —- so the thick and thin is one part and the letter shapes is the other think of the trigger is pulled back 25 percent 50 percent 75 percent 100 percent .. it feels to me I’m on 65 percent thick side thin side it’s 20-25 percent .. even less for thin lines .. it is ok once you practice it a bit hard at first .