CO RFI so can definitely have J10o and J10s like 16 combos of straights and a few smaller flushes that make sense. Even vs that range that might not always raise, you're only against 7 combos of boats that play this way KK QQ and 44 that beat you.

Trouble is villain is never bluffing with this river card and sizing, so you gotta just get reads on what his value range will be on the river, taking into account you led turn on KK4Qccc.

Deffo seemed like flopped nuts or J10 or maybe like small flush. Just a cooler wouldn't worry too much about it.

Think Davids range on the river isn't polarised enough to be betting close or over betting pot. Think david double barrels a fairly wide range being that K10+ is for value and he will have some one club bluffs.

Also villain can have extremely strong holdings by the river still and the large sizing will not make villain any different to folding say vs a 2/3rd pot size bet. We are basically getting called too often because villain can have too many strong hands and so we lose more money by overbetting.

Perhaps overbetting is not as good as I first thought but I'd definitely like to see a bet-size closer to pot.

I really don't want to bet-call here, and betting small might induce stuff which I did not account for (like villain raising JT for example) whereas if I bet large I am less worried that villain thinks he has any FE or value in a raise.

I'd say we're pretty polarized otr after we bet turn 3w oop we're not valuebetting Qx otr. Our value-range there is mostly boats, flushes and straights.. Villain's range consists of mostly bluff-catchers and slow-plays so let him bluff-catch or jam. I think we should bet large with both our value-range and our bluffs here.

Not saying we should have a ton of bluffs but the larger we bet the more bluffs we are allowed to have, and it's nice if we are allowed to bluff those occasional missed 1 card flushdraws or gutters on this river.