I'll chime in here, for what it's worth.
I don't know why I was originally opposed to not having game limits. For roto-style, game limits are essential (this is probably where I was coming from, since I've mostly played in roto leagues). For head-to-head, I realize that having no game limits helps level the playing field. When my team's best players play only 3 to 4 games one week, and my opponent's players have been scheduled to play 4 to 5, having no game limits will help me stay competitive.
Still, I am wary about GMs abusing the system, by keeping one or two roster slots free to add/drop free agents on a daily basis to exploit the schedule. To combat this, I'm still considering a cap on roster moves for the season. A topic for debate.
As for our H2H categories, I'm fine with either a classic 9-cat, or an 11-cat system. I can't imagine not having steals, blocks, etc. in a league though, and I like including TOs, but that's just me.
Looking again at our current cats, I think maybe we should probably change them to FG%, FGM, FT%, FTM, 3PTM, PTS, REB, AST, ST, BLK, TO, if not drop FGM and FTM (for classic 9-cat).