Any benefit on using the kernel on Tahiti cards (280x) at all?
Maybe - I haven't tried all settings - if you want to try something new, try it out. You'll want to change your settings, though; I basically implemented a lookup gap of 2.
I access my mining rig remotely and try not to test "untested" kernels- if something goes wrong I have to mission to restart the PC.I have it set to restart if their are any failures etc but sometimes the fail-safes fail as well

I'll give it a go. What setting changes do you think would benefit the most? Worksize?