What tire setup for the Trail? 28″ or 30″

I have decided to buy a RZR S 1000 so now I am trying to determine the best tire setup for my needs. I ride mostly wooded trails that have rocks, mud (not to deep) and lots of creek crossing. I really want a nice all around machine. I have never gone larger that a 28" tires on any of my past machines as I have worried about breakage and losing the sporty feeling of the machine. I was thinking about stepping up the 30" tires this time, like the EFC MotoClaws. I am sure I will need to add High Lifter rear arms and a clutch kit. My question is, is 30" tires to big for my needs? Will it still be sporty (run fast and corner down fire roads)? Will a clutch kit compensate enough for that added weight of these tires? Will I have to worry about premature wearing of the machine?