Hi Zac, have you tried any blanks from Continental Clothing? They have a few styles in their Men's T-Shirts and Vintage Style T-Shirts line that are 4.x oz or so: http://www.continental-usa.com/Collection/
District Threads also has a 3.69 ounce t-shirt that you might want to try:
http://www.districtthreads.com/dt/CatalogBrowser?id=199360&parentId=305067
(you can get District Threads wholesale through SanMar)
District Threads also has a 3.69 ounce t-shirt that you might want to try:
http://www.districtthreads.com/dt/CatalogBrowser?id=199360&parentId=305067
(you can get District Threads wholesale through SanMar)