At 6max, I'd say it generally goes like so (preflop):
Nitty: 15% or less
Tight: 20% or less
Fairly solid: 25% or less
Laggy: 30% or less
Fish: anything higher than 40%
Its pretty rare for a player to run higher than 40% and not have serious problems with their game.
For Full ring, less than 12% is nitty, 12-17 is pretty TAG, and loose is like 20% or more.
Solid players generally have a VPIP/PFR ratio of at most 2.
Btw, check out the trial of hold'em manager as well. I prefer it to PT3 since the HUD is a lot easier to setup & customize on Ultimatebet.
Btw - If you're short stacking on FR @25$ NL, you should probably be a bit tighter than 18/14, since a lot of your implied odds
hands go out the window.