Well im glad that things worked out for the best,it sounds like to me that either your boat is way to heavy or your trailer is way undersized !!!!...maybe the place you bought it from made a mistake,and sold you a 600lb trailer when you needed a 1200lb trailer,and that can happen and does on a regular basis,something very similar happened to me,when i bought my first 16ft aluminum fishing boat,it came with an 800lb trailer,and it looked so skimpy,i didnt like it one bit,so i refused to buy the whole boat,motor trailer combo,and the guy right at the northtrail factory near uxbridge ontario,upgraded me to a 100lb trailer,and it looked alot better,and i never had a problem with it ever for the 8yrs i owned it !!!!so you should maybe look into that ...glad your boat was safe and nothing catastrofic happened to it...cheers man