The ski that had major durability problems was the nine lives, which was the predecessor to the no time. The double time seems to have a pretty clean track record, and from what I've heard, the durability problems around the no time seem to be a thing of the past. The double time is the wider and stiffer ski of the two, so it'll be better for hitting big jumps, although the no time is lighter (and if you're only hitting 25 footers anyways, softness shouldn't be a huge issue...). At your size, I would think you'd rather be on the double time for its added stability. Also, if you end up taking a run outside of the park, the double time would be the better ski on high speed groomer runs or in variable conditions. I've heard good things about both skis, though, and I'm sure you'll be happy with either one.
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