I think it's a Grand Idea. I have 4 .36 SNUBBIES and R&D type conversion cylinders. However, I do switch back and fourth between Percussion Cylinders and Conversion Cylinders.
If I did a set of conversions with Gated Recoil Plate, I'd have to give it serious consideration. But I haven't/won't so that makes it a moot point.
Still a Grand Idea.