Erik, it sounds like we have the same MEI pack...or almost. The detachable daypack is tight with 5 to 6 8x10 holders -- it might hold a few 11x14 holders. The pack could hold an 11x14 with a non-reversable back, since there is room for my Zone VI 8x10. Jim saw my set-up, so he should have an idea of the size. my pack is great for me, but I am 6'3" -- might be too big for Jim.