Bronze distributor drive

If your suggesting NOT to use the bronze gears, what do you suggest using with a roller cam. I am getting ready to do this also and don't want to mess up a gear and waste money?
I use and will continue to use bronze geared intermediate shafts.

Please elaborate as I am very interested in knowing.
Maybe I'm lazy. They sell you the gear only and you have to install it on the shaft of your choice. The operation has never been a pleasant experience. You are to use a new gear on a new cam only. The lifetime expectancy of the bronze geared intermediate shaft has never been a problem for me. They are easy to exchange. You pop one out and the other in.