I have 29's currently optioned which is the min required for the 83" prop on the FX3. I'm wondering if I should go with the 31's instead? Cost difference is minimal but it may afford a little more protection on the prop, more forgiving than a smaller tire for landings, and as it's slightly larger it would in effect last longer as I'll be hangared at a paved field. I plan on the heavy tread option. I realiz the penalties will be drag and weight but I don't know the numbers on 31 over 29 in that regard.
What are the opinions on 29 vs 31?