ORIGINAL: HEAD0001
I spent a good bit of time researching this exact same question. I decided to order the #1 oversized hinge pin from Bellm. I almost ordered the one from EABCO, but decided to go with the one from Bellm. IMO Bellm made the better argument for his product. Go to his web site, he discusses the hinge pins in depth. I do not have a shooting report, but I will. Tom.
Guys it doesn't matter if you buy one from EABCO or Bellm, or have one made by your local machinisht as long it fits as it should. If you have a loose tolerance holein your action, and it slides in real easy, its not going to help. It has to be machined to match.