I''ve used a 35# CQR on a Catalina 30 for years and a 45# CQR on a 17,000# 33'' motorsailer for several years, all in SE Alaska. No problems with weeds. Only problems I''ve had with these anchors is trying to anchor on solid rock, which happily is not often the situation. The motorsailer has 35 fm of 5/16" chain. Love it!