If you went out of the groove let's just say "you knew" you were out of the groove. Yes it is very tacky as your tires get build up on the outside edge. All cars traction rolled at some point or another but some got theirs under control. It was a throttle control thing but it slowed you down obviously because you had to slow down. The car was fast but as the day went on the traction was crazy. Go outside the groove and you either pushed or the rear got loose.