Like the other posts I only have good things to say about the Manson Supreme and assume the Rocna
is the same. The only time it has not set and stayed first time has been in seagrass beds.
My cat is a bit smaller (36ft and 6.5-7T loaded) but plenty of windage. I was very unsure about sizing but eventually went with what Manson said on their website. - only 16KG!! On a 10mm all chain rode
. Design over weight they say.
This has proven quite sufficient. I sat out a few days of winds in the 30Kt range and like the previous post the only issue was getting it out of the sand when we wanted to leave.