Sorry but I think Ti Ball studs are a waste of money. I mean guys are getting their cars under weight limits with kit screws and ball studs, so if that's your reasoning, I would start in other areas. Personally, I run about 1680g because that's where my car handles the best. Most of the team guys that I have spoken too are around 1640 for the same reasons. Some of the guys tested in the 1500's and everyone of them still went back up to the 1640 range.