I hadn't seen this thread, or I would have chimed in. I received a Meco split holster a few weeks ago and have been using it quite a bit. I like it, very nice work, and I like that I can switch it from front to back pocket and it doesn't print too much like a gun.
I think it's a good design and will likely use it alot. I use a Graham a fair bit too, access is probably better with the Graham, but the Meco presents less of a "gun" outline, with the flap of leather in front.
I've had a Milt Sparks on order for awhile, it should be here in the next couple months. That was always my favorite pocket holster for my S&W 340 j-frame. I'm curious to see what I think of it for the R9. I'll report in when it arrives.