Ahem. Apparently Dawg is my friend, or I am his. Who knew?
I have a Rocna Stowable 25 in the bed of my truck in Annapolis. It will be on the boat this week and wet this weekend. Anyone who wants to come play is welcome. It will be cold. To my knowledge there are two of these anchors extant as of November, my 25 and a 20. I don't know where the 20 is. I don't know when full production will start. I don't know what production pricing will be. I am an early adopter on the initial Rocna anchors, but I don't know why I was offered the opportunity to play with this anchor. If you ask any of these questions you are buying rounds for everyone who shows up to play.
To my mind - and anyone may feel differently - this means that there are only a few technically viable (cost aside) options for a really good holding, solid, readily stowed, secondary anchor: Rocna Stowable, Raya Tempest, Spade, and Fortress.
I am not going to be doing scientific testing right now. I have two years experience with a standard Rocna 25. My initial messing about in boats with this anchor will be qualitative comparison with the fixed anchor.
That said, anyone who is a degreed civil or ocean engineer with expertise in saturated soils who would like to coauthor a paper for SNAME and/or RINA on repeatable anchor testing should get in touch.
sail fast, dave
S/V Auspicious
wintering Annapolis MD