I guess it doesn't wipe out saved data if it keeps your old fastest laps. Does it keep the fastest lap replays?I tried that and it eventually worked. My main account seemed to work faster. I've deleted the full profiles of 2 alt accounts now and also about 200gb worth of games. I don't want to risk deleting the save data only as it does really look like it's all bundled into one. Also I've been getting some cross profile saved fastest lap saves and replays on GTS for a while. Don't know if that's a common thing.