Replying to HELP!

i bought the new ARV's 2 weeks ago, planning to use them for when i go out west and for all mountain use, because i had the 04/05 AR5's for park...well i just sold the AR5's, not totally sure why, but the whole reason i bought the ARV's was around the AR5's, that i would not need a strong park ski..well it looks like im only going to have 1 ski that i need to be able to do it all on, and i sort of want the MSP's this year but they are pretty stiff and heavier than the ARV's..im light so i dunno about them...i need help because i need to decide if im going to return my ARV's today...i will ski probably 50% groomer 50% park this year, east coast, and will go out to alta for a week...im 5'10" and 135 pounds..