We have been coming down since 2011. Only place we have had issues with "bumping" was three times, all at Cooper. Every time was on windless nights where all the boats just drifted around how they pleased. The one time we had a "bump" and the close calls were all with our Cat and a Mono, the other two times were just "VERY" close calls. I noticed the monos did their own thing and the cats, theirs. Granted we were first on our Leopard 42 and now on our Leopard 45 and not a 50 or plus Cat that may have different issues. Seems all the cats pretty much remained in line with each other. We have never had that issue at Marina Key, Trellis, North Sound, Great Harbor, West End or Anegada.