Thanks for your comment. Every once in while I will try to restack my Canon 1D Mkll, 24-70, 16-35 and 70-200 (all 2.8 L's) with the flash and battery in the F2 and it just is a bit too tight.
Looking forward to what may come in down the line and will hold on until then.[/QUOTE]
Which insert are you using? I use the 720-230 along the back in all mine; in the F-2 I leave one end compartment empty. The other compartments (the '230 has slightly bigger compartments than the others) hold any of my core lenses (70-200 2.8 IS, 24-70 2.8 or Sigma 15-30) and the 1D3 goes on its side with the lens lying across the front of the bag. The bottom grip squashes in the empty compartment, or if you've got one of the shorter lenses on, you can use all 3. I keep my flash in one of the end pockets. Batteries go in the bottom of the bag, and help prop the lens up a bit.