Yup, I went with the SH-0256. Used the team associated RC18t servo saver set and none of the peices fit the savox 21 tooth spline. I modified the savox servo peices to get me by till I can find a good servo horn/saver for this micro. If anyone has any recommendations, it'd be appreciated.

I added a updated build pic... Note to everyone out there, it appears they've updated the front knuckles so the aluminum ones I bought that are intended for the original mrs4 release do not fit on the newer ones... Oh well. Other than that it seems like the rest of my parts are fitting well and getting along.