[Roby466]

Hi,
I just had mine rebuilt. It shifts better than before the rebuild, that's for sure but I cannot say that it shifts like a modern transmission. It does require a bit of effort to shift my 915 but if I rev-match as I double clutch while downshifting, it does feel pretty good. Maybe the new operating sleeves and synchros are a bit tight and need to loosen up a bit... not sure.
The only other experience I have with this would be with a VW transmission. After replacing all the shift bushings, it did require more effort to shift through the gears for a while and then got smoother. That could have been called a "break-in effect" but I don't know if it applies to the 915.
I hope this helps and hopefully other guys with more transmission rebuilding experience will chip in...
David