Maximizing OOP and overbet theory

1/3 NLHE 8 handed

Table is a bunch of loose passives and one or two nits, V is the only remotely competent player.

V - Young guy that's learning the game and has a foundation. Probably break even player. He understands position, textures, etc but is still too loose pre and still makes one of the biggest mistakes in our room - the "look at all the callers out there! I have to call!" (with KJo from BB type deal). He's a little mubsy sometimes, afraid to raise or 4-bet when the situation demands it. He's also waaaay too "THE SOLVER TOLD ME SOOOO" and doesn't play the player enough (which I think is a massive leak). Example - earlier in the session he was heads up IP with a kid that barely knew what poker was. The kid would look at his cards, back at the board, trying to figure out what his hand was, painfully straightforward. The board was super drawy like A♠ J♠ 9♣ 8♣ 7♠ and V paid off the kid's 2x pot vomit river all-in. The kid showed a naked T for a straight and V mucked tell me 2-pair has to be in his MDF there. He's also afraid of my game (moved to my left when I sat down) and sees me as very capable of bluffing. HJ. 435$.

H - has been winning and is up big, over 2500$. LJ.

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BTN loose passive straddles 6, SB loose passive calls 6, folds to Hero in LJ who sees 8♦ 8♥ and opens to 25, V raises HJ to 65** off a stack of 435$ eff stack, BTN and SB fold. HU OOP.

**Aside** V has some lock on an idea from a "pro" he met that EP vs EP 3-bets should be 2-3x (ie. smaller) while LP vs LP 3-bets should be 4-5x with the 3x IP aphorism being only an average - I'm not sure if this is true but the logic makes sense to me and I plan to implement it more.

Flop 135 - Q♠ 8♠ 3♥

H checks, V bets 70, H calls

Turn 275 - 7♦

H jams for V's 300...

Thoughts?