i don't know if hardware is the best place for this, but its about hashing capacity so i thought maybe.
from what i've been reading, it seems the advice is given that it is more profitable to mine with a pool.
if that is correct, at what hash rate under your control would it be more profitable to mine on your own, paying no tax and keeping all the transaction fees?
How much variance do you want? Disregarding the greater-than-100% PPS offers out there, you have nothing to lose by solo mining, but it will take longer for any action unless you have a decent hash rate. I personally wouldn't bother going solo unless I had 50+ Ghash at my disposal, but that is just because I am impatient.