str8/flush draw on flop, not sure which line to take on flop....

[cs3]

shoving is perfectly fine/standard.
just raise more the first time around - a pot sized raise would be $33

[Double Eagle]

I call a lot in this spot because 6 of our outs are hidden and we are likely to get paid off when we hit vs an overpair and can take the pot down on the turn vs the same set of hands that fold to a flop raise in the first place. That said just getting the money in can't be too wrong, hard to mess this up really.