i have the tough mount, had it for a long time. was switching lenses so often, my plastic a7r mount stopped working. dont bother with the non fitting adapters and stick with rainbowimaging aka fotasy adapters. The A7ii and A7rii have metal mounts and your adapters may not work on them either. I have MD mount, FD, OM, and EF dumb adapter, all from fotasy, and they all work with tough mount. Fotga's were hit and miss, no named hit and miss.
Sony A7siii/A7iv/ZV-1 - FE 24/1.4 - SY 24/2.8 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - F 600/5.6 - CZ 100-300 - Tamron 17-28/2.8 - 28-75/2.8 - 28-200 RXD
Panasonic GH6 - Laowa 7.5/2 - PL 15/1.7 - P 42.5/1.8 - OM 75/1.8 - PL 10-25/1.7 - P 12-32 - P 14-140