I have a pickle too n was going for pretty much the same thing as you - i ride some park and a lot of random terrain too n just pretty much jib around a bunch. I went mid flex and got some GNU Choice bindings last year. I like them a lot but not every likes the rear entry.
Maybe check out the Ride Revolts. They're pretty sick for 2013, especially for the price ~$199, and have EVA foot beds and the new slime highbacks (pretty sick in lime green if you ask me) - a little more forgiving laterally, yet pretty darn responsive when you lean back. Would be a decent compromise when riding groomers while still wanting to dick around.
If that's out of your price range, maybe look for the 2012s. They don't have the slime back and would be a little more stiff i guess. I can only speak for the 2013s.
Park Pickle / GNU Chice