Originally Posted by MnHPVA Guy
What sort of recumbent did you try them on, and how did you orient them? They suck on an upright, but I wouldn't have a 'bent without them.
Back then, I used them on uprights. Spinning with them caused me to bounce horribly. But they were good for the granny ring, which I typically didn't use unless I was mashing in my lowest gear or two up a steep incline. They worked for low rpm; but for higher rpm your feet spin past the dead spot quickly enough anyway.
In addition, if used on the big ring, you have to set the derailleur spacing to the high spot on the oval, which effectively reduces the amount of teeth the derailleur will span, in addtion to degrading front shifting.