yo joe!happy holiday to you, fellow unique rider my seat is set so when the bars are at 90 degrees to the frame i can hold the seat and the grip at the same time...trackstand hangover maybe, but i also have to ride to my spot sometimes and i don't have iron quad muscles...my seat is tilted up to make hang 5ives/ wheelies (!?) and steamrollers easier, but that crazy 45 eg. angle you see some riders run is perhaps more fashion than function. Cory Fester still runs that (relatively) low seat height, so maybe it is all about individual preference...bu the way i've been running my seatpost about 1.5 inches past the maximum recommended for a year, no problem. Someone once told me that provided you have 1.5 inch of post in the seat tube it should be okay (but don't quote me ;o)
a high seat setting seems to make lots of tricks easier, but personnaly i think that the trick looks ugly then.Look at some crazy low setting like pete Brand's, it is important in his style, iam sure his riding wouldn't be as awesome with a hi seat level.
Are you joking?