CST pedals are one of the best!
If you decide for the g25, and obviously If you want , go to Leo Bodnar forum and ask to him about if he is developing some kind of USB interface for connect CST pedals with G25 wheel..he is the supplier of my usb chips and the Todd ones
regards
try to put the gas pedal a little further back of brake, and after this try to press both pedals, configure the distance at your best feeling of heel and toe. If you can adjust the travel of the pedal, try to put a nice face (sparco, momo, or any) in the brake pedal with some spacer. http://es.youtube.com/watch?v=q_AiBdVJifA
this happens "sometimes" when you are getting understeering in cornering, i mean, you take the turn and you need to release gas and keep hard the steering wheel, i dunno if this happening to you, but its a cause.
remember try to put the brake pedal a further back of the gas pedal. I saw to some guy for reach this put and sparco face over the brake with two spacers and this give to him the TnH action, this was made for their g25 pedals.
Your idea has solved the issue of the heel and toe action, If the gas pedal is not further back of the brake pedal, the action is not easy to do. simple, clever, clean, congrats.
Mabe is something wrong with the hardware, did you the potentiometers working?
I mean when you are at full brake, it seems the potentiometer is not traveling so much, i dunno
its a nice wheel, but 2000 usd ( plus a good steering wheel) its so high for me, damm! I think my wife do not can cope with almost 1 month of salary, all the day keeping it just looking nice at my desk...but anyway many congrats to the buyers, Shige is having good request for tis wheel.