Supershifter Encoder Reliability Problems?

[Qbranch]

Ok, so we were driving the snazzy new chassis I posted pictures of recently today, and within just a few minutes our encoders on our supershifters ceased to function. No, it isn't a software problem, I've examined the output of the encoders with an oscilloscope on both sides of the robot. One is almost constantly high (5v) and occasionally comes low if you spin the transmission shaft fast enough. The other randomly gets pulses occasionally when you spin the transmission shaft fast enough.

Has anyone else had reliability problems with the supershifter encoders? We're probably going to end up making a coupler and all then mounting different encoders as the open-frame us digitals (being open frame) are more prone to short life if there is any runout in the shaft of the transmission.

*hint hint* Any suggestions Andy?

-q

p.s. Where are my manners: the shifters pull great and the gear ratios were well figured. Nice shifter. Servo shifting not so hot, switching to pneumatic.