One of our winter projects was to upgrade our 35kg Spade anchor to a 45kg Ultra. After 3 weeks of cruising and anchoring with the Ultra, I feel like I can give some feedback on how it’s going. Although we haven’t had any really strong winds at anchor so far this trip (the top was around 20-25 knots) we have had no trouble setting and holding in many different bottom types, including weed, rock and sand. The Ultra has worked perfectly for us in all the conditions we have encountered. It definitely sets better on a short scope than the Spade. We can reliably set on 3:1 scope on the Ultra, where we needed 4:1 scope or more on the Spade. This may be due to the extra weight, but in any case, the Ultra is definitely better.
I nearly always dive on the anchor after we drop to check we are set well, and I really like the shiny stainless steel finish of the Ultra, which makes it easier to spot when we are setting in weed bottoms.
Here’s a video of our Ultra in a sand bottom in Sargone Bay, Corsica. The anchor reset overnight after a 90 degree wind shift. You can also see our anchor roll in the video, which is a really handy little buoy that makes it easier to drive towards the anchor when raising it.