20/10/3.95 VP$IP 6max (lol@aggro factor)
14/8/2 VP$IP Full ring

Your stats are fine if you are making money. The only reason you would increase it is if a number of multiway pots begin to take place in which case i like to fish a lot with implied odds.
I personally add a huge range from HJ/CO/Button from playing 6max lhe when i can put my opponents on a predictable range but thats a personal thing.
Salsa4ever hit that sort of range K9s any PP QJs etc.
Demipardigm had a good post about preflop hand selection but you would need to dig for that, its the one i like.