Midibox LC design question

I am working on my MBLC.  I have a couple of questions.  first since I am in the US i will go with the panasonic Motorfaders, becuase I can’t find an alps supplier.   Has anyone designed touchsensitivity for these.  I keep reading about a mod that thorston did, but I can find it.  HELP please.  Also if anyone knows where i can get the alps faders I will appreciate the help.

You can get the alps at Mouser www.mouser.com but i think they are about 40-50 dollars.

I think the mod was just a function implemented into the firmware that sent a touch message to the host application if the fader was moved more than a certain amount, or held against the direction of the moving motor. I believe that this was only in the old MF module, not sure if it continued in MIOS. I think TK’s other idea of a thumbtack next to the fader is much better. (my rebuilt LC will have this, where the heel of your hand rests on the panel as you move the faders.)