I sure hope your idea for a swimming attachment works, I know you don't want to let it out right now, but would it be something that could be crossed over to work with any machine? The reason I am asking is ... well think of it this way, there are a lot of tires out there that have excellent mudding ability but wont swim for even a little bit, if you come up with a bolt-on attachment that would swim AND would work on any machine then... well, you get the picture!
Now, you are gonna HAVE to stop putting up pics of your playground, 'cause you're making me really jealous!
That are reminds me of the place I originally built the 950 for, it was open land when I started the build, but had leased before I ever got to ride in it. Ya know, one of my favorite things to do was ride into a bunch of briars(like the ones in your pics) and donut-shred 'em. It can be a little painful cutting them out from around the axles though...
DESTRUCTION is just a couple of vowels down the street from DISTRACTION