I just bought a Lanparte FF-02 to use with my SLR Magic 12, 17, and 35mm Cine MFT lenses. The gears on the FF and lenses are all supposed to be 0.8 MOD but they don't mesh fully and when you turn them there's a bit of extra play with a clicking/grinding noise. Focus pulling doesn't feel smooth. This doesn't happen with the Lanparte rubber gear ring, which fully meshes with the FF gear.

Does anyone else have this combo of gear and have you run into this problem? Does a particular one of the other gears you can get for the Lanparte work better with the SLR Magic lenses? It seems dumb to have to put rubber gear rings on lenses that already have gears...

Thanks