Comfortable fabric, but no support for a heavy bust

I spent about 4 months ordering, trying on and returning nursing bras trying to find one roomy and supportive enough (every size chart is different, but I'm in the 40J neighborhood).I was optimistic about this one when I tried it on because the fabric is comfortable enough to sleep in and there was enough give in the cotton to allow for size fluctuations. But now that the baby's here and I'm actually nursing, I'm frustrated enough with this bra to toss it after less than 2 weeks.Cons:- The band is not supportive and doesn't stay put. I'm constantly tugging at the back from where it rode up. It simply doesn't have what it takes to keep heavy breasts in place.- The side stays dig into my side, which gets worse as the band rides up. They end up constantly poking my armpits. This is why I'm not even keeping it to sleep in.- The cups are not supportive enough for heavy breasts. The fabric just stretches and bunches in odd places.- The hook and eye loops are the skimpiest nursing bra flap closure I've ever seen. I keep expecting it to simply pull out of the fabric. The multi hook option for size changes is a nice idea in theory, but it doesn't seem to make a lot of sense to do such a small hook in bras supposedly designed for large busted women.Pros:- The fabric is soft, which is a bonus for those early days of soreness. Right now the only bra I've got that's supportive enough is a sturdy - but rough - fabric.I think this bra would be fine for smaller busted women, but if you've got some girls that need real support then you probably won't be happy with it.