I am going to put switch grips in my stuff and would like some opinions on how to go about it. My ball press will not drill the 1 1/2 hole we need threw existing hole so any easer ideas in stead of plugging every thing. I do use thumb slug I was thinking about using a fresh slug but don't know if theres a way to get the old slugs out. It sounds like a dumb question but would just like some other poples opinon before i whast my time trying to get the other slugs out.