I keep on relaying my experience with Gunfleet 58/04 (anchored with an ULTRA Anchor) where in 45-50 knots of wind another 40ft boat dragged its anchor which rode up our chain and became jammed in our stem-head. For the next 2 hours there were TWO boat anchored in big and nasty swinging winds, on just ONE Ultra Anchor - if ever I had any doubts that the Ultra was just a beautiful looking peace of deck jewelry (because it IS beautiful !), that night proved me completely wrong.
(ps if you want to use that quote, be my guest)
Ipswich, Suffolk, IP2 8NJ