The danforth styles are a pain to work with in a dinghy full time. Hard to stow in a locker or bucket, sliding around bruising and cutting your feet if on the floor, pinching your fingers whenever you try to use it. They pretty much fail to hold well in all but pure sand bottoms and if they get caught in rocks, they bent easily.

We have found the small 4-8lb bruce with 6' of 5/16" chain to be almost a perfect dinghy anchor. It sets better and quicker than the danforth in almost every bottom. When the bottom is rocky, it is real easy to dive down and wedge it in a rock to hold. It doesn't set well in weeds, but easy to push into a weedy bottom by hand. It doesn't have a high holding power - but that really isn't an issue for a dinghy, particularly a portabote like yours. Sets and works well on short scope and is easy to throw (you will be surprised at how often this is useful in anchoring dinghies).

We came upon this solution after several years of cruising using our dinghy multiple times each day for a variety of anchoring needs. We went through grapnel and danforth before the bruce. Over the years, people have gone dinghy anchoring with us have also changed over to a small bruce and seem equally happy with the difference.

But by far, the grapnel types are the worse. Any anchor type you get will seem a big step up from those.

Mark