Re: Conn reso's --- Why?
They lend an air of authenticity to the repad. They are extremely firm and flat. (Gotta be sure your toneholes and pad cup rims are level - can't shim and adjust Conn Resopads very easily.) When properly sized to the cup, the fit is very reassuring.
A little more expensive and a bit more difficult to work with - sizing, tonehole preparation.
I'd not recommend someone work with these unless they are already experienced and comfortable working with traditional pads - like me :)
Ferree's is a great operation. In my opinion, they use the best pad leather next to kangaroo leather. Do not be surprised if a pad or two does not exactly fit if you order a pad set rather than individual sizes, but I'm sure they'd work with you on an exchange if that happens.