I've been building a Kentucky Longrifle from a Track of the Wolf kit. I'm getting close to finishing the barrel/gas plug inletting, and my book left a step out - The touch hole. From what I understand, that step occurs after inletting the lock, however, I'm not 100% sure on where exactly to drill. Since drilling in the wrong place would be a nasty accident, I thought I'd ask if anyone has tips/instructions on drilling the vent hole. My assumption is that I would drill it so the bottom-most portion of the liner (vent/nipple) would be even with the curvature of the frizzen pan once installed. Your help is greatly appreciated. Thanks.