Since I carry an SA myself I've considered the whole "hammer hang-up" issue. I've been carrying high-ride crossdraw in part for that reason.
I also find that crossdraw points the gun at less of my body. If it does go off in the holster or during a re-holstering accident, it's not going to take out my kneecap or foot. It might give me a glancing hit across some hip skin at worst.
Best of all, that same "rest my forearm on the gun" trick used to block grabs can also be used in heavy brush to protect the hammer and trigger.