I wanted to have the ability to have a side-stick as well. Considering that I had that craigslist welder customize a second Obutto flightstick mount for me, I put it to good use today and added it to my setup.
I feel that a side-stick, with shorter throw, is more fun for fully fly-by-wire planes like the Mirage 2000 (and hopefully future DCS modules as well).
I also needed to come up with a better solution of mounting the Mamba itself to either the center or the side flightstick mounts than using screws (which would be a pain to do on the fly). So, after some consideration I had an epiphany and raided my wife's desk to find some binder clips. These little guys are strong when used in groups, and I was able to "clip" the Mamba's base to the Obutto's flightstick mount as desired. :thumbup:.
This makes swapping the Mamba around a breeze, and adding/removing the extension is simple enough with an allen key; however, a quick-release solution designed by VKB would be better...
Also, never ceases to amaze me how awesome it was by VKB to allow the grip to be rotated as desired - I can have a perfectly straight grip for my side-stick setup, and a leftward rotated grip for my center-mount setup. My wrist is grateful for that.

See pics: