so cryptonight run overnight quite well on three linux rigs and without any problems.
without problems is not exactly true... the pools are not that stable. one pool made a comfy coffee break for 5 hours.

sadly the kopiemTu monitor process do not work with tvis ccminer release at the moment, so I have not the comfort of failover anymore.
and all these cryptonight pools would badly need it.
btw. your -l 8x60 is also with my rigs the fastest option i tried so far
[2014-06-24 17:57:13] accepted: 46/46 (100.00%), 1372.57 H/s (yay!!!)
I don't think you can pass launch configs to ccminer...cudaminer takes those, not cc, afaik.

I read it on tsiv's post & on github... this combination would not come to my mind otherwise.
this switch gives me 20-25h/s more per card.