I considered the Oft bushings and block, but went with originals due to pricing. I think Oft are out of business as well, can't seem to find those parts anymore. The trick is to adjust the suspension properly, more pressure on center spring is a must. You could also relocate center spring for added pressure (move lower mounting point an inch forward). The skis -and adjustments for darting also has a lot of impact on cornering.
I swapped the bushings with originals 2 seasons ago and no issues so far with my setup. I drive a 162", I'm short and light but the steering doesn't bother me.