28″ or 30″ paddles on Turbo XP900?

Thinking about switching from my 26" STU’s to either a 28" or 30" setup on my 2011 2 seat Turbo XP900. Currently running 130 whp on 26" STU #2 comp cut paddles on 12×10 hyper beadlocks. Hill shooting and drag racing are not a priority, need a tire that will handle the horsepower, provide ground clearance and dune awesome.

Any opinions?

Thanks: