Thanks for your response biondino. I understand what you are saying but I think my postflop play is a little weak and sometimes don't know what to do when i don't pair up.
Also, i have no problem playing against opponents in 10NL, i just want to make sure I usually have the best hand headsup against preflop raisers and it seems like the blinds eat you away pretty fast on 6max, hence is why i said i will do full ring instead. It seems like you should be able to bring in $20 instead of only $10 because the blinds are double 5NL.