dobro Capos....

Have you ever found a good one? I have personally owned them all and don't really trust any of them. Now I don't use one at all. This beefs up your left hand quite a bit, and can cause you to scramble.
Josh Graves said a long time ago that the ability to play without a capo separates the men from the boys on the reso.

I speculate that the ideal reso capo (IMHO) would have the following properties:

• No moving parts
• One Handed installation
• No bulky hardware above the strings.
• No retuning necessary
• Doesn't alter intonation

One potential design lives in your kitchen in the form of the handle on a butter knife or similar.

Just my two cents. There have been some excellent internet threads on this subject. Check out www.jerrydouglas.com and the bulletin board there for more information.