Well it's probably healthier to have the fan running at higher RPM than the card running at higher temperature, although I still don't recommend having it too high over extended periods of time as the bearings may eventually come off and cause the fan to sound like a thousand mosquitoes on speed.
You should be 100% safe on both fronts if you up the temps to 70 C.
Perhaps you're right then, I guess I'll give it a little leeway. I'll think about making a custom profile then.
That'll do it for this thread, close whenever mods.