Good point Jamo, worth repeating! I had to replace my distributor gear a couple of times myself with that stinkin' solid roller. The only good thing about loosing a lifter (and the cam) was it gave me a good excuse to redo the motor the way I wanted to anyway.
Those new solid roller lifters with
oil pressure feed likely cost more than a comparable hydraulic roller, but you still have no gaurentee how long the distributor gear will last!