See this thread for reference...
http://www.chronofhorse.com/forum/sh...hlight=eggbutt

Long story short I am wanting to see if my TB prefers a thicker bit to the Myler D he goes in now. He was not impressed with a loose ring with a copper lozenge, but I suspect it was too small. He needs a 5" myler, but a 5.25" or 5.5" in other bits. I am having trouble narrowing it down and would like input based on the bits available here...if I could find one eligible for the bit trial even better!

http://m.marystack.com/for-the-horse...s-eggbutt.html

TIA!!