Originally Posted by
Mike C
Don't practice in carbon! Carbon is very abrasive and you'll end up dulling the tap and the chance of breaking it in the aluminum will increase. If you are using 4-40 set screws you will need a #43 tap drill and a 4-40 tap. Also, use a lubricant when tapping the hubs.
I went with 2 set screws.

that looks like a very nice job. I will be doing mine today if i have time. When I went from the B44 rear hubs to the alum A hubs. I could feel it was off. Kinda hard to describe, it just didnt feel right and more inconsistent to me.