Here's Voodoo's Response:
I like the Twisty, the plams are easy to follow, the overall cunstruction cost is cheap, the controller works well but the one caveat is that drilling into pvc is hard and dangerous. It really is the hardest piece of construction. Hope that helps, I say if you can get access to a drill press your ok, hand drill is a little iffy.
Let me know if I can help you on assembly or what ever, I have a pretty good pic of my Twisty:
http://home.indy.rr.com/voodoomachine/index.htmJust select other projects Ive built and keep updated on your project.
Good Luck