You're using the insert that came with the bag then. I don't. It comes out of the bag as soon as it arrives and I replace it with a different one. Specifically [url=http://www.tiffen.com/displayproduct.html?tablename=domke&itemnum=720-230]this[/url].
Use it in the F1, F2, Backpack F2, F-802, F805 and F7. Only thing I use the 4-compartment (or more likely the 3-compartment [url=http://www.tiffen.com/displayproduct.html?tablename=domke&itemnum=720-233]720-233[/url] in is my "deerskin Domke", a haversack I use when I'm RennFairing with gear. Otherwise the 4-compartments stay in my gear locker at home, separating the lenses.