I'm an owner of a R-21. I was at the docks in Silverdale, WA and a large (probably 35-40 ft) sport yacht ended up hitting my boat. Looking at the damage, it looks like he only caught my starboard bow rail (some pretty decent scratches). I looked over the rest of the hull after I took her out of the water and didn't notice any other scratches. My question though, is it possible that the force from the other boat cracked anything internal that I can't see? Is there anything else I should be concerned about?