I agree with RickB. I had a TN75 with SuperSteer and traded it for a TN75D. Granted I had computer problems with the S, but I used the opportunity to trade for the D model which I love. The SS was lousy with the loader, not because of the offset when turning but the instability with the axle fully turned. The tires also spent a lot of time plowing forward rather than turning. The D in effect turns almost as well and is much more stable. If I were running an unloaded 75, and doing a lot of row work and mowing SS would make sense. I run a 9000+ pound TN75D and find it very stable. The same equipment, Woods 1050 bh, loader, and 1600# of RimGuard made the SS some what spooky.
Andy