best adapter for OM lenses?

I recently bought a Chinese version on eBay. Seems to be well made and does the job. It is a mechanical device only (no electrics) so as long as the fit is tight it will do the job. An eBay search will bring up lots of items around the $35 mark. The pictures look very similar and I suspect there are more sellers than manufacturers.

 

I have 3 OM adapters.

I bought the chi-chi Olympus one first, but it is -so- tight on the lens, I figured I would need another one, so I wouldn't be taking it off the lens each time. In fact, it's so tight that I wouldn't trust taking the lens off while the adapter is on the camera, for fear of damaging the camera itself (!)

So I bought 2 more - a $35 noname on eBay, and a $40 Fotodiox on Amazon:
Amazon.com: Fotodiox Olympus OM Lens to Micro 4/3 Four Thirds System Camera…

I actually ordered the noname first, but it took a long time to come in from China, so I ordered the Fotodiox in the meantime. (Amazon's 2-day delivery is awesome.)

Bottom line:

1) The noname is just as tight as the Olympus. Each of those is dedicated to a lens now.

2) The Fotodiox is great. Just tight enough to hold the lens well, just loose enough to take the lens off & put another one on without pulling the adapter off the camera. In fact, all of my other adapters (FD, AI, etc.) are now Fotodiox.