The only bends we have done thus far are manual which requires :mr-t: muscles.
It was easier than I thought it would be keeping them in in sequence. You do notice that towards the end of the 90 degree bend it got difficult. One of the guys in the shop could not go past ~70 degrees as he weights in at 160 lbs and that was not enough weight to operate both jacks at the same time. I weight in at 210lbs and it was all I had to operate both jacks in sequence.
An easier option would be to use longer handles or hook them up to the air compressor.
I will hook them up to air and create a demo video then report back.
Troy