I would do a little experimenting before spending a bunch of money on a new track and/or a drop and roll. Try the stock 5.1 to see if you like it. If you want to firm it up, try F-Bombs track mod that cuts the little nubs off and then adds thin trim screws into the paddles (see the Polaris IQ sub forum for details). Almost everyone who tried his mod has really liked it.
Save your money for important mods, like a muffpot. Rider horsepower is just as important in the backcountry.
2007 RMK Dragon 700
SLP Pipe/Can Flowrites Vents Airhorn, DTR Tuned PC-V, 19/42 Gears, .375/47 Springs, 5/8" Swing Arm Relocation, Carbide Slidekicks, HD Better Boards, Better Bars, Skinz Bumper, Mountain Addiction TrackRack, Rox FlexTec's, TCP Walker Evans Needles/Dual Rate Springs Front & Rear, AKSNOWRIDER Rear Bumper/Tunnel Support
2012 GMC SLT 2500HD & 16' Aluma Trailer