So I used the sale this week to finally buy electronics for my saber. I'm using the MHS Extension Blank Style 1 as my handle. It is the one made for the grooved parts and so has a 1.1 inch Inner Diameter. I originally picked up the 28mm premium speaker but now wonder if that is too big. Should I go with the 20mm instead? I'm using MPS Pommel style 10 as well if that matters.