Which ZPacks Blast food bag?

[Hot5nics]

Does anyone know if the Z packs cylinder blast food bag will fit the 52 L arc blast better then the rectangle. I currently have the rectangular but it does not seem to fit the full width of the pack. Would the cylinder on its side fit better?

[Bigfoot86]

The cylinder should fit better horizontally the square one. I have the cylinder bag and it is larger than the square roll top bag. Hope this helps