pro 5.0 shifter, adjustable stops question???

i recently got a pro 5.0 shifter for my 06gt, and i was wondering something. it comes with adjustable stops and i hear our cars have them integrated right into the tranny already, so my question is do i need to set these or sould i just back the nuts off all the way and get them out of the way of the shifter? i planon installing it tomorrow so any help would be appreciated. o btw it recommends taking out the driveshaft, is this neccesary or does it only make the job easier. i can deal with a little more of a pain in the arse if it means not having to deal with the driveshaft.
thanks!

thanks for the help, im going to try to get it done this weekend if possible. i saw how much the stock shifter stinks at the track and the night i can home i ordered it, lol. and i noticed the directions about the stops, i just keep hearing alot of people sayin they arent necessary so i figured i would ask here first.