I think I am going to try GenSelect in addition to the DIY tips on this site. I have heard a lot of negative comments about them but I have researched the science behind it and it does make sense. I have conceived 3 boys (one m/c) and intend to do everything differently! With all the boy pregnancies I used OPKs and we BD every day before, dureing, and after O. I ate a very 'boyish' diet too! With my first child (girl) it kind of happened without trying. If I remember rightly we BD just once and hadn't seriously started trying! At that time I was eating different things too!
Do they do a girl version of the one you found?
TTC baby #4 Girl!