I finally made it through the entire thread. Hopefully my eyeballs can be popped back into their sockets soon.

So far, I have converted my bass drum pad using the HF method. I love the feeling and response but have the sensitivity cranked up to 90. I thought that I didn't have resistors until I got to the part about the PCB on the TRS jack. I need to go back in and remove it to solve that problem.
Interesting observations about my kit. The shell that I have is plastic, not wood. I don't think it impacts anything other than the presence of 4 "alignment grooves" on the bottom of the shell that line up with ribs on the base of the trigger. Because of this, I needed to make sure the wires coming out of the bottom of the new sandwich is centered between 2 of these so they align with the hole that goes out of for the jack.
I also noticed that the white foam had cuts where it had been beet to smithereens and pressed into the ribs of the base. There was literally a hole cut all the way through the foam where the circle in the base is. This could explain why I needed to replace the piezo too. Even with a heavy foot, I don't see how the Mylar head could have flexed enough for this to happen, but apparently, it can. Oh well, I beat the guy up on price because of the dead trigger pad, and it was an easy fix. The messed up white foam also wasn't a big deal since I cut a bigger hole in it anyway.
