Quote Originally Posted by jeff tarinelli View Post
Thank you for your help. I will give that a try tomorrow. Strange that its the same problem with both machines. The purple one I bought used but the WHI one is brand new. One question, are the rpg disposable stems a different diameter than the aluminium rpg?
Same diameter. What could be happening is that the collet just needs to break in by assisting it like I mentioned before. One thing that just came to my mind is that perhaps slightly filing with a nail file all around the edge of the back stem to ensure its rounder.

Let me know if this work for you.


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