Tried the portable version last night.

Shut itself down within an hour or two - multiple times. Left miners running as background processes even once the GUI had already crashed out. Numbers never updated. Coin choices seemed all wrong. If it actually managed to run for more than an hour or two before crashing, the returns (based on the bench's and predictions it was showing me) would have been considerably less than NH.

NH was always stable. Never had crashing issues with it. Machine is stable. Nothing is OC'd. Pretty much everything non-essential was removed form startup long ago.

So, for now, I'm back to running BOINC (which is also nice and stable) for GRC on all available devices. But I'll need to set up some alternative mining on the GFX card to cover the running costs. Was hoping it would be this. But it seems way unreliable to me. Gonna pull the finger out and just run a direct miner I think.