The cam locks on the F75 WERE changed after several cracks were reported. I believe they had their maker switch to a stronger plastic on the F75. Mine have been fine thusfar on both units.....
2 more improvements the F75 has over the T2 is that the F75 has the nice golden anodized rods, rather than the green paint of the T2. Another thing that was addressed on the F75 has to do with the batteries. Or occationally dropping the T2 down would re-set it as the batteries "moved". I have never had that happen on the F75, & I believe the F75 solved this with simply a thicker foam in the battery compartment to tighten the area....
First Texas can probably send you the stronger cams free, as it is under warranty. Once you get the stronger "F75 cams" you'll be fine. Maybe folks can change them by themselves rather than send the entire unit in? I'm not sure on this, but I know I replaced a few cams on my old Fishers by myself as they just easily screwed apart.....
HH,
Bill