well you're always gonna have some wiggle room unless you have precisions. But your cups do sound worn especially since gullwing uses a really thin, low cut cup design. The benefits are added response, stability, quieter, and all around more comfortable. Id recommend replacing them with some Khiros, hardness depending on your weight, and riding style theyre very cheap btw. Id replace them whenever you start to actually NOTICE the wiggle room in your daily riding