FWIW. I wouldn't ride Union Bindings if you paid me to again. I had 3 pairs alone last year. 2 KFC Edition's and 1 pair of Data's. All had the same problem. The bottom ratchet would get logged in the up position when you would try to unstrap. I know the usual comment, it was an isolated situation, but not when it happened with 3 of my bindings and a few of my crew's bindings. Depending on where you spend a lot of time riding, I would look at Flux for a more park oriented rider and Forums for an every aspect binding. Feel free to ask me questions about Union bindings if you would like, or Flux for that matter since that is what I am rocking now. I may not be one of the senior members here, but I do have some experience with them.
I had the same problem recently with a set of 07 Force that i just bought frm the US and had them sent to me here in Aust. The toe strap jamed in the up position, fortunately i managed to just get my foot out & had a on-mountain tool kit handy. Even with that it still took me bout 10-15mins to un-jam it while sitting on the slopes.
It only happened to me the one time in the 8 days i was snowboarding but i was a lil disappointed seeing they were brand new & i bought them based on the good reviews they got here.