Just a little note to share some interesting things I've noted while embarking on EC with my DS, and having my 7 year old EC graduate around the house:
1. Boy vs. Girl: yes it is usually messier to EC a boy; however, on the flip side, I discovered an advantage to ECing a boy: on the bblp, you can almost always see the stream of pee, even if you can't hear it hit the inside of the bowl. Thus you know your LO has gone, instead of, with a girl, having to lift her up to see if she's peed or not.
2. It's interesting to see the interaction of the EC graduate and the ECing baby. DD loves to help DS potty and takes a renewed pride in how she had been ECed as a babe.
3. It's funny what things from EC stick long-term and what things don't. For example, many times when I've been peeing DS on the bblp and DD is in the room when I make the "psss" sound, DD will say, "stop, you're going to make me have to pee, too" LOL! I usually remind her that that means she probably does have to pee and should go upstairs and use the bathroom ;). Similarly, I can still tell DD is pooping instead of just peeing by the face she makes on the toilet (she often leaves the door open when she goes to the bathroom), which is the same face she always made as a baby... On the other hand, when DD was a babe, she could pee in the bushes, the toilet, the bblp, the parking lot, the shower, etc... basically wherever... But now, she will only go on the regular toilet. I've learned this by virtue of the fact that we only have one bathroom in our house, and it's happened several times that I'll be sitting on the toilet backwards holding DS to go poop and DD comes bursting in needing to pee. I hate to ask a 7 year old to hold it (especially one that has been ECed and is in touch with her need to go), so I've attempted to have her squat in the shower and pee, but she refuses. Thus I usually pause with DS and take him to the shower (which is right next to the toilet), and then DD goes on the toilet just fine (so I know it's not an issue of modesty and wanting me out of the room). Serendipitously this situation has taught me the advantages of shower ECing a boy--the messiness factor decreases because there's such a large target to hit (ie. the whole tub is fair game and will end up in the drain), and conveniently our diaper sprayer easily reaches to spray messes down the drain.
Anyway, just thought some of you might be interested or amused by these observations. Cheers!