It's not too hard to figure out, just figure out what units/seasons you want to apply for, then apply....at some point it will ask you if you're the group member, or group leader.

If it's just you and your son, obviously you'll be the leader I'd assume, apply as the group leader, at the end they give you a group #.... then when your son applies, he'll click on group member and put in that same #....and you'll be applied as a group...

I think I read they may be changing this system, or maybe just that it was slightly confusing, either way, it's not too hard to figure out once you goto apply it'll probably spell itself out for you when you actually apply.

Hope this helps.

Btw I believe the entire state's antelope tags are basically divided up into 3 regions. There are some special handicap seasons, etc..., and maybe some special youth tags, which may be much better odds, however I don't qualify for any of those, so I'm limited to the 3 regional tags, and I think you can apply for all 3 so you might as well apply for all 3 zones, just figure out which zone is your 1st, 2nd, and 3rd choice...they're all great from my understanding. I think some have a 2 day season, some maybe a 3day season, which you may prefer for a father/son hunt and trying to get 2 for 2. Good luck!