Actually, you can just uncleat the rudder on the twist-n-stow as well. I do it often with my Outback. The difference is instead of just pushing up straight back it goes off at an angle and you find yourself in a left turn!

Not terribly convenient, but it does let me go through shallower areas without worrying about bumping the ground. Of course if it's shallow enough to *always* hit the rudder I have to stow it.
Which is why I'd love to put an Island rudder - or any generic up/down rudder for that matter - on my Outback. I'm often headed into shallow creeks and areas with lots of submerged brush with it.
On the TI uncleating works great.
I've never had a lot of luck with the "short stroke" pedaling. Even when doing so I wind up tagging the bottom with the blades fairly often. Of course the worst is when I'm cruising along in deep enough water and hit a sandbar or similar - like hitting a brick wall. Since we don't really have sand, we have mucky red clay, I'm also usually firmly stuck. It's *possible* to pop the click-style locks loose in this situation unfortunately I have to lean toward the drive - putting even more pressure on it - to reach the levers. So I wind up doing this stupid looking "bounce" while pulling on both levers in the hope enough pressure is relieved to let them pop loose.
So generally in shallow creeks I just leave the rudder down but uncleated and remove the drive and paddle. (I want the rudder down if at all possible on the Outback, its tracking is terrible without - though I haven't tried trailing a rope yet, as Bob suggested.)