Extended ball joints to lower car without effecting roll center

[truegearhead]

I’m running coilovers and elephant racing control arms with removable ball joints and was wondering if anyone has installed longer ball joints to lower the car further without effecting suspension geometry and the roll center. It’s a common practice on stockcar racing and other racing but I’ve never heard of it with Porsche’s. I emailed Elephant Racing and they say they don’t support it. They use common ball joints so I could just buy extended ones but man the risk of having something brake scares me... that being said it’s a common practice elsewhere. Has anyone done this?