Since I made my initial post about our diaper system I've added to it a little.
Initially I ordered three flats and loved them! So I ordered a dozen. Only I don't love them so much now. The real problem is that while the flat diapers aren't exactly uniform, they are supposed to be roughly 25"x25". Well after several washings I can confirm that those first three are more like 27"x27" and the dozen are more like 23"x23". There is quite a difference between those batches! I still like the first three flats, but I find I'm not using them as much anymore. Maybe because I have so many diapers now that even with going to a wash-every-3-days schedule I'm not running low enough to need to use them. Or maybe it is because E doesn't want changed as frequently as he used to and so I tend to grab something more absorbent. I think they would have been more useful to me in the first six months. They aren't bad to use to stuff diapers though. They are also great when E has a really messy diaper and I can put them underneath him to be sure nothing gets on the changing table pad.
I ordered a couple pockets (BumGenius 3.0) awhile back to use for going out and about and to try for night. I liked them, but didn't have enough to really get a good feel for them. Then Baby Cotton Bottoms was having a sale, buy 5 get one free plus free shipping, so I ordered half a dozen BumGenius 4.0. I don't notice a huge difference between the 3.0 and 4.0 design except that the 4.0 looks like it will fit longer. I still really like them. Sometimes it is tempting to use them all the time, but I don't have enough for that and can't really afford a whole stash of them. Instead I save them for the diaper bag and overnight use. I usually end up using all or almost all of them in a wash cycle, so I think I have the right number for us. I double stuff them (that is, I use the regular insert plus the small insert/doubler) because I'm always using them when I need maximum absorbency. There have been a few leaks, but I think that is mostly due to carelessness on our part when we put the diaper on or he just never wakes up to let us know he is whet until he is so soaked he leaks. Really though, it hasn't happened much at all.
I think that was all I needed to report back on. The fitteds I bought are still too big to try. If I'm missing anything or you have any questions let me know.