With my 54 I had several failures with the supplied original Wasi 30 kg anchor which I consider undersized and decided to change the size and brand.
After a long hesitation, I installed a Rocna of 55 kg 3 years ago.
I sail in Greece and I often have sudden gusts of wind.
Now, since this change, the anchor has never failed (even with 50 knots of wind at anchor).
No regrets and the anchor goes very well in the davit.
Irko 1 A54-16