Despite the spline issue which I am sure also affects the non Bleazey conversions I would 100% get it done again. The splines may never be a problem on the majority of cars but the rollers will be a problem on ALL cars. Do you want the engine out everytime the rollers go cos I don't? Worse still they go whilst on your travels.
From my understanding the spline issue doesn't affect the standard non PB centa drives - the earlier Harley cush drive yes, but not the standard centa.
I'm sure Phil is trying to sort the issue with his hub/crank spline fit (if that is the issue - which has not yet been confirmed) but if the splines do go lose then it can also affect the crank.
Very true about the rollers, but same again, some MMC rollers fail at 3000 miles and others at 23000 miles.