I have no issues with 35" or even larger, assuming the correct mods are done to run them safely. As a vehicle with 29" tyres, i wouldnt contemplate a 'fun' track that needed them anyway.
Personally, i think 35s are more likely to limit damage due to footprint and patterns, apart from the depth of the ruts. Its the way they are used that causes the damage, spinning simex 35s have gotta throw some dirt!
Cheers!
