Also ...
The design was initially designed as full-colour on "natural". However, the design is much clearer and frankly looks better as a single colour (black) so we are considering going with the one-colour rather than the full-colour because as clear as it looks on the computer, it won't look as precise once its printed and as past years have shown, the simpler the design the better it looks on the shirt.
I am going to see about getting the image printed on white and on natural to see how they look - I'm concerned the white will be too stark and many folks prefer not to have white teeshirts these days. I might be able to mix and match shirt types but I don't know that for sure, will let folks know if I can and folks are interested in white shirts.
I should say that I'm leaning toward the organic cotton because I can get the most sizes in "natural", but I don't know how much lighter 8.3 oz is and I don't want to offer a shirt that is too lightweight to last ...