Well unfortunately I have no experience with the racestars or moser studs, so I cannot answer those questions. I do have moser 31 spline axles in my car and they have been great. Several high rpms drops and they haven't let out yet.
You might want to post this up in the 2011-2014 board, probably get more views and answers. Nice looking wheels btw!
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.