Some is a wing keel thing, but prop makes a huge
difference in reverse.Anytime you get stuck in sand or mud, being able to back out usually is the best thing. This is my first Wing Keel, but backing out is usually the best even without a wing keel. Though without a wing keel one can always try and heel the boat over and lessen the draft. But that takes time and sometimes lots of effort and when the tide is going down, you don't always have a lot of time and every minute counts or you'll be stuck there for a while.I used to have a 3 blade fixed prop and trust me, most fixed props are **very** inefficient in reverse.I touched bottom leaving the Sand Hole one day, I thought no problem, I was going slow so I'll just back out of the small sand spit I touched. I put it into reverse and **nothing**, I didn't move, even with full throttle. So I put it into forward and I was able to "drive" through the sand going forward, and thats with a wing keel. So in this case it was not a case of the wing keel, but rather no power in reverse. What this tells me is that fixed blades are great for going forward, (and tuned that way) but very ineffective in reverse. So I went out and got The Autoprop. The Blades of the Autoprop swing completely around so that the forward thrust is exactly the same as the reverse thrust. And it does make a difference, I have already noticed it.So as far as Wing keels sticking really hard, I have been lucky (knock on wood) that hasn't happened yet, but so far, I have been in areas that are mostly sand. I have heard its the deep thick mud that causes those problems.But then again this is more of an East Coast thing with shallow water and sand shoaling and mud. Not to mention I have 7-8 foot tides around here, so every 6 hours the depths change a lot. But if you sail the west coast with the deeper waters this matters much less.But to really gunkhole around here really helps to have the wing keel, It would be much more difficult to get into some of these areas around here.Note the Chart for one of my favorite places called the Sand Hole. http://mysite.verizon.net/vze32p3k/sitebuildercontent/sitebuilderpictures/sandhole.jpegI wouldn't be able to enjoy this place as often or as easy without my Wing Keel and an Autoprophttp://www.imagestation.com/album/?id=4290594895