Any pointers on getting a miner that is stable for RVN?

I've tried a few of them that are linked in the ANN thread.  I think they're all ccminer variants.  None of them will run longer than 10 minutes without crashing my rig, rigs that are stable 24/7 for days mining Zcash with EWBF's Zcash CUDA miner. 0.3.4b.