20kg spade with 60m 8mm chain on a 9tonne (when fully loaded) 42 foot cat. Hasnt been tested over 40knots yet but has held very well in all bottoms seen so far including the testing seagrass beds in up to 30knots. Have dived on it to find only the very tip of the shaft visible in sand while a cqr
that had been there for longer was just sitting on its side maybe 20% buried... would never go back to one of the old gen anchors now.
for your bigger boat in a spade i would go the 25kg or even 30 if world cruising
probably only downside i have to the expensive newer anchors is when dropping into rocky areas and deep water
- you do wonder if you will get it back. Will proabably add a fishermans for such times at some point.