From what I understand, Saris is upgrading the hubs on the PT for 09 by adding a larger axle and ceramic bearings. Are these upgrades worth the increase in price? Are there any other improvements I should be aware of?

I'm not trying to start a war on whether or not ceramics are beneficial or not (I like them in the bb, don't notice them much elsewhere), but I'm really curious if the larger axle and subsequent larger bearings would add a perceived increase in stiffness and or rolling performance to the rear wheel.

I don't know for sure what the price increase will be, but I believe it's couple hundred bucks. I'm wondering if I grab an 08, or wait for the 09's.

Any input is greatly appreciated!