They don't really say anywhere but I am guessing it is the same as it is for 85/89/92 OVR SB Players.
In which case your 95 (and 96?) SB Players would receive...
+1 STR +1 AGI +1 SPM +1 IBL +1 PRC +1 ZCV
More benefit maybe on the DEF side of the ball but not sure its game changing if those cards aren't already best at their position.
Worth it?