Burton Twin is medium stiffness as far as park boards go. If you're looking for something with magnetraction or banana check out the Lib Tech TRS, which is pretty stiff which would be good for bigger kickers but still suitable for all around park use.
East Coast Park Rat
2008 Burton Twin 157 w/ Rome 390 Boss
2005 Burton Canyon 168 w/ Ride LS
"its ppl like you, that I would "impact damage" your face if i ever saw you
keep your mouth shut. one more time, please and thank you." -user: chingy_