ive got the same wear problems, but not as accelerated as before, it did glaze a bit which worried me but the straps still look to be holding up well, i also float back and forth between the treemotion and treeflex so im sure that helps out a bit, ive been favoring the treemotion a lot more lately. Because of the cooler climates ive started wearing thermals, with both saddles i feel saddle sores with the additional clothing on, more so with the treeflex, but the treemotion offers the second set of d rings that causes 0 saddle sores on my hips (because they are placed lower of course). Also, i have developed quite a nice hernia which will need to be operated on soon, the treeflex aggravates the hernia a bit more where the treemotion acts more of a brace for it.
ive had my eye on the petzl as of late, just feel like giving it a good thrashing, but money is a bit tight, anyone want to trade for a month?