Boat Insurance Company is the way to go IMO! The 3Rivers boys directed me to them about 4 years ago. They have a seattle branch. I had one pretty large theft claim...emailed pics and the police report, and had a check in 3 days (almost 9K). I have 2004 Intruder with replacement value insurance and I'm paying $320.00/yr.

Boat trailer tires are notorious for wearing weird. My first "Set" on a new traielr only make it about 7500 miles. I just go to Schwab's and get replacement ones...I wanna say bias ply though. Remember to keep an old tire for a spare if you don't have a spare already.