GMP sells dies to fit their plugs, and dies to fit AMP plugs. Which would be more compatible with Allentel plugs, and more generic (who knows what purchasing buys) plugs? I know when I previously had a GMP (great tool!), we had to make sure we bought only specific plugs when we went to Graybar. If I were to buy one, would I want the one with GMP dies or AMP dies? What's the difference?

Thanks!

Justin