Just tried it on a southwest flight out of Denver and got denied. I was able to bring it to Denver on a southwest flight out of Philly so it really is a crapshoot and depends on who the TSA agent is and what kind of mood they are in. If you want to bring it with you just give yourself plenty of time like I did in case they don't let you bring it on the plane and then you can just mail it to yourself. I was able to get it boxed and shipped from Denver to Philly for $67 and it should be back to me in the next 2 days so overall it really was worth it in my opinion.
I used my OW to film tracking/dolly shots for our football hype video this season. I used our glidecam and dollied towards our players. We got some good shots. Add the glidecam and the shot looks like you're floating on air.