1) You want to range bet the textures where you have a significant advantage. Looking at preflop range, we see that our off-suit threshold is around 9x (J9o,Q9,K9o are opening pure preflop, whereas we have far less 8x and lower). This matters because there offsuit hands make for a big part of the overall range.

So I would rangebet any board with 2 cards 9 or higher.
I would also rangebet any K high texture and Q-J high disconnected.
Range check rest.
Range check also any monotone flop as BB has more suited hands.

2) If you want to simplify to a small rangebet you're not going to make any big mistake in theory as you'll naturally have an advantage on almost every board vs the average fish, but there will be usually be a better exploitative option, as you get sample on them. Vs some of them you can get away with sizing for your hand strength.

3) That's a very complex topic and one i'm not very familiar with, but in general you can probably get away with playing quite faceup at 25nl, as most multiway pots involve a fish, and there's not much incentive to bluff. Keep in mind that value thresholds goes up significantly, meaning that you'll need a better hand to bet or raise for value.

If you buy PIOsovler Pro you'll be able to answer to a lot of questions like this on your own. Price went down recently too. GL

PIO3 is out now. It's still like $550+ for the edge but with GTOWiz costing $129/mo for elite, that doesn't sound so bad anymore. Does PIO3 solve preflop?

Like?

Oh, wow. It has a trial key, too. Thanks for this.

Trinity Thanks again for the heads up about the product. I contacted them on their discord and they assured me that everything is fine. Admittedly, this isn't the first time I've had to override Defender when trying to run something totally innocuous.