All the shifters are wobbly -- you can check them out at a dealer. I do that whenever I go to a dealer or a demo fleet, just to feel better, because mine is on the upper fringes of wobbliness. I've replaced the nylon bushing with OEM ones, and that helped a little. Many folks here have replaced the OEM nylons with metal ones from WitchDoctors, but that often requires sanding the inside or outside of them, to get them to fit and to prevent binding.
Re the slipping issue, do you wait long enough before shifting into 2nd? Because of the easy-neutral-finder mechanism, the bikes won't go into second unless the speed is something like 6mph. But I'd go much higher than that, e.g., at least 15. So, I don't mean to be insulting, but I'd try waiting a bit longer, and also, as stated earlier, shift with authority. Having a heel shifter also helps do that.
2012 XCT (SOLD)
: HeliBars; Centramatics; PC-V; Lloydz air filter; 11" Madstad; Rivco LED mirrors; Doran TPMS; Stebel horn; Motolights; CustomLED trunk flasher; KewlHeel shifter; CycleOps trunk rack; BeadRider seat; Vibranator bar ends; Passenger grab handles; Powerlet outlets; Handlebar RAM mount; RicZ laydown plate; Brukus SaddlebagSecure; 14" flexible antenna; RAM cupholder on trunk; shock Schrader valve relocation.