I'm running drop spindles and haven't had any problem with them. When you get the QA1 setup make sure you get 0.9" taller upper ball joints and 0.5" lower ball joints to correct the crap factory geometry setup. When these a-bodies came out they specifically engineered the suspension for understeer. Adding the tall balljoints will correct that and also help eliminate bumpsteer.
I cruise, road trip, "canyon" carve, and autocross the car, everything is holding up.
I cruise, road trip, "canyon" carve, and autocross the car, everything is holding up.