I loved my mlst2 with the exotek single servo conversion and mip centre ball diff. It's a lot more fun to drive than the xraym18mt, which isn't really a mt at all.

Also boiling the plastic parts of the diffs seemed to work well. Too bad one18th.com has gone. There was a lot of usefull info there.

You can mod kyosho mi-st09 diffs (nitro half-eight st) to fit in the mlst. Someone on ebay sold them already modded to fit in the mlst.