Subject: Good luck ! maybe this is a better idea ?
Hi Yaco !
I think the waveidea looks very sofisticated and useful, but you may be in for a few surprises if you are not familiar with a soldering iron.
Personally, I'm waiting for the Doepfer Pocket-dial (not a kit), which have 16 endless dials which work relative to the position of the parameter.
This means that the value will be adjusted without any big and sudden jumps, even if you are touching the dial for the first time since starting up the PC.
Check out
http://www.doepfer.de/home_e.htm and press the pocket dial in the upper left corner.
Good luck !
Stubbe