Can’t agree with your claims. I honestly never had/have such problems. My ex. Troy Signature had excellent Cardas copper binding posts that
never lost their grip. The new Troy Elite NG has custom made copper binding posts that are adapted to bigger and heavier grounding cables and have equally good and lasting grip. Even two Emperors mkii (much heavier and bulkier than the Thor SE) on one binding post present no challenge to them. I admit putting more than one grounding cable to a binding post requires a bit of skill and patience but would not say it’s a “treacherous or frustrating affair”.
BUT...if you want to have a good and lasting grip, your hands (even if they’re strong) are unfortunately not enough. You need to use something like this...
View attachment 62493