I just found this. It's so nice to see you back in Sims 2! I love Sims 2. Yes, it's different and takes adjustment.
100 babies! ZOMG! That's going to be hard, but at least you have the older siblings helping with the younger ones. It's not exactly *fair*, but it works.
I look forward to seeing more!
Oh, btw, I read once that the FBE can be avoided if you just don't exit and reload the lot between births. Keep your sims as homebodies, and the FBE doesn't hit. Basically, what I read was that the game reverts to the first born gene's each time you reload (like it re-sets the count on spraying for bugs, so if you want plant sims, you need to keep your sims at home for quite a while). However, if you DO exit the lot and then reload, before you reload, you can enter Create-A-Sim, and put in 2 adult sims, then "play with genetics" to roll the die a few times, and that resets things with the FBE. No need to save the sims. Just do it before you load the family you're playing, and you should be good to go.