While fishing big twin during a fairly tough wind ( I've been out in much worse) I tried reanchoring about 7 times with no success. Each time a gust would come along and blow me out of the fish bucket. I am using two anchors of 15 pounds each. I have been out in much worse with only one anchor that has held. Could it be that there was nothing on the bottom for the anchors to hold up on? Your thoughts, please.