What do you mean twisted seams? I have a C&C long sleeve tee and don't notice a problem.
I only have a splendid tank so I can't really answer I guess, but I don't have any problem with that either.
maddog, you know the seams on the side of your waist? The best way I can explain twisty seams is like some True Religion jeans. The seams don't lie straight down your leg, but are shifted.
THANKS for all of the responses. I worried about buying Splendid because members commented on how holey some got.