Currently I have bar tires on (21-10-8), as long as I'm reasonably careful when mowing, I have not had any turf damage. However, the bars do leave a pattern in the grass that I would like to avoid. I have an extra set of rims so I can keep the bars for winter plowing, I think I want a round shoulder profile. I'm considering turf tires (Carlisle Turf Trac RS), Smooth tires and ribbed (Carlisle). Anyone have any experiences with the tires, pros and cons, recommendations, etc.?