Usonedesign has stuff and those guys all race and cruise. Plus nearby. I like them. And budget is a big part of the equation. I usually buy the ratchomatics. About 110 to 115 bucks. Youll get a million different arguments answers here..I buy what's local usually or from vendors I like. West marine carries the carbos and there are 2 within 5 miles of me. And they have a nice sale once a year I try to scoop stuff up at. I got the last one from boat locker on sale for 105 bucks.Can anyone make any recommendations on replacement mainsheet blocks? Didnt find much at Rooster - my usual source.