c_schrei
aka Christian Schrei is a 26.11 year old boy, has been a member since May 13, 2005, has scored 15,485 submissions, giving an average score of 0.95, helping 162 designs get printed.
i'm a little confused why you care that there are 138 left. i'm sure the print number vary each week...if you're simply concerned that you won't get a shirt in time, well i still believe you might get it by next week. since a lot of people made purchases last week from the sale, they volume of purchases should decrease this week.
c_schrei- i'm guessing they usually have more for reprints, as they've been requested a lot of times, so they know they should print more. also score tends to be a factor in how many shirts of each size are printed.
stale_cheese- if you put like 900 of the shirts for one size in your cart, and try to process the order, it'll say instead "sorry, but we only have [this many] in stock." the sneaky way to find out!