Saber Tactical Tank Bag review

I have 2 large and 1 medium size tank bags each from different Brand. Each have pros and cons. My main focus is to have a tank and able to tether @ my BR.
With my favourite tank bag the most pißing is that the valve opening/hood zipper starts from bottom going around and stops the other side just above bottom edge. Now, when I put my tank bag on a bench I need to move it to the edge to unzip the hood and attach my Huma external Reg to the DIN valve.
This ST tank bag valve hood at least looks more clever design with dual zippers, but that open box is huge again.