Well I've seriously been contemplating the actual effectiveness of the Proportional Payout mode on Deepbit. Who uses it? How much do you get paid per M/Hash (or another comparable figure)? Is it really worth it for the little guys, such as >1G/h?
A lot of people use it. You get paid proportionally to what you put in, it's different for everyone. Proportional takes a 3% fee, whereas PPS takes a 10% fee. Some pools have 0% proportional and PPS, look around. Also, I think you meant < 1 Gh/s
and it doesn't really matter either way, just don't solo mine if you want quick returns