I have both as well (not with the Cajun bushing on S2). As a tack-driver/plate-shooter, the S2 (which I converted to SAO) definitely takes the lead. But for competitions like IDPA/USPSA, I like moving around and shooting on the go more with the Legion. Lighter and a bit more nimble, if you will.
I also split time in SSP/Productoin divisions with my Legion DA/SA and SP-01 Tactical. I'm considering a CZ Tac Sport as well.