I got an XLite Large the day they were released and it too had micro holes in it and it deflated overnight without me even laying on it.
TaR inflates all of them in their warehouse for at least 24 hours before they package them up but sometimes I think that is just not enough. It is almost as if they need to apply some pressure on each pad while it is sitting there.
I inflated mine and set it upright in my room and the next morning it was flat.
I did not by mine direct, but I contacted TaR and they had it replaced.
The second one held up very well and used it a few times.
I do disagree with you on the tapered design, I sort of like it, at least at the foot end. It would be somewhat neat if they left the head in squared (where I tend to need more room as a side sleeper) than start to taper it off right around the 50" mark (just past the hips). But still, the full tapered effect is not bad.
That AllSeason is still the best pad out there, by the numbers though.
As for me, I really want one of those TaR Women's 40th Anniversary Edition Prolite sleeping pads. While not a wide and long like you and I like, for a medium size sleeping pad, wow what amazing r-value for weight and cost.