Zeagle Ranger: Bladder insertion into the wing?

[Granty]

I have a Zeagle Ranger question. I took the bladder (the white balloon-like image) out of the Wing (nylon black material image) when I last cleaned my BCD. When I went to insert the Bladder back into the Wing, I noticed that the Wing has two layers of stretchy material like a "sleeve" inside the wing. My question is when I put the Bladder back into the Wing:
1) Does the Bladder go down the middle between the two stretchy material sleeves?; OR
2) Does the Bladder go down the side that is closest to the diver?; OR
3) Does the bladder go down the side that is furthest from the diver (i.e. closest to the tank)?

Thanks in advance!

 

[Scared Silly]

In between as the elastic sleeve helps compress the bladder so not to have air pockets.