101--Although your boat is larger than my 16' FishRite, and you probably float somewhat different water, this might help...

Try using a smaller diameter anchor rope. I use a 3/8 in rope with a 35lb. pyramid type anchor. The smaller dia. obviously lessens the drag of the current pulling on the rope. More drag on the rope will reduce the holding ability of your anchor, whichever design you choose. The smaller diameter also is easier for me to pull through the pulley system.

Also, the suggestion of paying out more anchor line will help dramatically...good suggestion.

YoungManRiver
Klamath River CA