Below 25NL I would suggest you just play 1-2 tables. There is so much going on that you're missing if you can't observe the hands you're not in...

I can't imagine the $/100 below 100NL is of any significance to anyone uless you're in rhuanda and your family is all out of rice.
Play what's best for your development as a player, not your winrate.

If you play short handed you can get way more hands with less tables/players also, so that's the better way to get more hands in imo.