Encoders getting different rates

[jhellr13]

Hey guys
Been working with encoders the past few days on the drive train. Both encoders are e4p models, though one has an H in the model while the other has all Ds. I'm not exactly sure of the entire model number as I don't have them in front of me, but I definitely know one is all Ds and the other has Ds and a H.

Our Problem: The one with the H is reading the values way slower than the other. The robot could be on full throttle for 5 seconds and this encoder would be at 40 while the other would be at 1500. Major difference. I figure you could just scale the faster one way down to match the slower...?

Any ideas?

please help!!!