I'm only mining at 83Kh/s so is there a stratum that I should use with a lower difficulty? and if so.. will it make any difference?
use stratum this stratum 188.165.164.185:80
Robshot i mine at 147 should i use that too?
yes you better use him.
I mine at 120-140 and also use that one.
you get more coins from every block else on the blocks you maybe get 5 coins or something and the small blocks you don't get nothing, now you get always something even from the small blocks.
but if you had a lot of luck you slow miner, has mined on a small block you get a lot of coins but the change for getting that is really small.
I had it twice in de last month, had then 150 coins (with a diff of 200)