Quote Originally Posted by jfkansas View Post
I've tried 1/4" boro, and 3/16" boro, I have 2 of each... I use 3/16" almost always. The weight doesn't matter.
Would you please explain why? I read the 1/4in retains more heat for longer and on my I3 I used 3mm so 1/8in and it actually would flex with a MK2B so clips were out (don't use them anymore anyway).