Is it not that a Bronze-steel Alloy pilot bushing not wearing out so fast as an all bronze bearing which is softer ?
On my race Mustang I use a Bronze - steel alloy bearing because the all bronze is wearing out fast , because the hard shifting on high rpm's, dual clutch aso. ,whit the result that my dual clutch dont came ,, free"
Now my bronze steel alloy bearing dont wear out and my input shaft looks also good.
I am not a fan of roller bearings , when they failed there is always more damage on the inputshaft.
Dont want involved of this yes or no war , it's just my experience and want to share this.
Simon