6max: Nut Straight Flop Multiway, No Protection possible = Slow Play?

The preflop call is not mandatory but I admit that at NL2 it's tempting. So much implieds !
I think shoving right away is fine. You may get more value before some turn scarecard kills the action.

pre call might or might not be optimistic. flop i don't see any reason to slowplay, i'm not so concerned with utg being "priced in" but with cards that may make CO slow down with their holding (or even improve to beat you).

This looks fine to me

I think shoving here is the best option.
The board is really draw heavy, a lot of scare cards possible OTT and also some action killers for you. By calling you simply give UTG the right odds to call with a hand like Ax of clubs. Especially if both cards are over cards. And you're hand doesn't play really good multi way on this texture. By shoving you give incorrect odds for FDs so in the long term this is an +EV play.
Agree on that call pre flop is a bit too loose. UTG usually has a tight open range, CO calls as well and you can only continue with your hand post flop only if you flop OESD or better. So I think this a fold pre flop. 67s I would call tho.

But otherwise WP:f_drink:

I think i would do the same, even the call pre.

Thanks guys.