After a few weeks playing at 2/4 the one thing I've started doing more is calling down with strong hands. Villains start ramming on you in spots if they perceive you to be capped, so you have to make sure your call down ranges have some strong hands, even on drawy boards.

Hand 1)
Considering the above, vs a laggy aggro opponent who's already overbetting, I woul definitely call down with JT or 6x here. The only hand that makes sense for villain to c/c on river is 6x, or at least that's what I would have expected. Needless to say vs these regs in my post, I will be checking back a lot more now and they will be losing a lot of value if they start checking such strong hands to induce my bluffs.

Hand 2)
villain doesn't know my range, but I'm not 3b JTs or KJ on the btn so I actually have NO air in this spot. He's putting me on air to c/c me here (KJ/JT). I have a lot of Axs and some AQ that 3b btn and peeled his 4b, so frequency wise I'm ok with this play overall since it will get me action later. This is just one of those spots where you have to know your own range well and how many combos of each you have. As long as I have like 66% or so Ax here I'm ok.

Hand 3)
Once villain takes a c/c line on turn I'm jamming my entire range of bluffs and flushes for sure. I would never expect a flush after he c/c, so if I somehow had top set or something I would even jam that. Again similar to my opening sentence, I'm starting to call down with some strong hands to make sure my call down range is stronger, so I do have some Axss here. Also I don't mind this bluff, since looking at the board I pretty much have NO air getting to the river, except for this exact hand I happen to have.

Reviewing these hands, I dislike Hand 1 because he can c/c 6x and maybe even c/c JT after running flush gets there. Hand 2 I don't mind given my frequency of Ax (weak Ax hands that won't bet turn), and Hand 3 - don't hate it, but a smaller overbet would be fine as well, $170ish instead of $330ish.