The sway was pretty scary at 100+ mph, but it was manageable so I stayed in it every time LOL... Personally, given your power level, & manual trans, I would not recommend downgrading to DR's, its just gonna make it harder to hook.
The Summit Pro star knock off's that I have on my car fit fine with the 1/4" spacer to clear the brakes, they are only 15X8 though, & barely clear...