It just didn't look like this at all when we got it. Lol are you at sea level maybe there is higher air pressure, I'm totally confused on this one. Is your first name Denny? That's the one my wife was looking at in the shop today.
DPAD was smooth as a baby's butt, rubber was seated perfectly according to my wife.
Triggers no problem there either.
Left trigger, unfortunately no we didn't look at that, had no idea we needed to because you didn't mention it in your support ticket or on a note in the box. "I just work in engineering" I don't even work at the shop in the day time, that's my wife and our four other employees. I stopped by around noonish and talked ot her when she was working on your controller and even dug around the forums and found one of these posts, unfortunately the particular post I opened mentioned 5 things, none of them were about the left trigger :-x.
I think you are going to end up sending it back because my wife says everything tested out ok on the butotn test code (which isn't full-proof), my guess is the left trigger problem is still there. You sounded very animated in this thread so I didn't want to take it home over the weekend to play with it personally (which I usually do when people make this big of a stink about it but I figured it would piss you off more if we kept it any longer lol), we boxed it up and mailed it today which sucks!
All in all I just don't see what you are talking about, a video would help greatly if you could put one together when the controller arrives.