when i made a down hammock, it had only 3 chambers... one on each side & one on the bottom.
one thing i came to realize is that when the chambers are that wide, there is not enough control of the down.
if you use a lesser amount of down, it will shift & settle leaving thick & thin areas.
if you over stuff w/ lots of down, it will only be as thick as the baffles at the edges of the chambers, but it will be unnessasarily large in the middle.
i think the chambers do a better job of controlling the thickness & making better use of the down when the chambers are made more narrow by sewing the baffles a reasonable distance apart.
just what is an ideal distance??? i don't know, but i would tend to think about 7".
don`t leave the CREATOR out of the creation!