When to go to showdown?

[Romulet]

In the 6 max limit games I am finding myself being superagressive with most pocket pairs and aces espacially ajo and above (probably a9o if I'm honest).
Once i get into a heads up pot, I've always raised pf or 3 bet unless im on the button, I've got a tendancy to keep firing until the river.

I have had a decent ammount of sucass in getting heads up, and then using the equity in the money left behind to support my hand. Some I win, some I loose. So far with sucess.

My question is this. With hands like ak aq and aj is it + ev to fire on the flop and turn nearly all the time regardless of the flop?

Whatabout 77 on a QT2 board?

I know its player dependant but I do play in the loosest games and people will call you down ace high or less and call 2 streets with a gutshot or call flush and straight drraws HU all the time.

Once I've gunned my way to the turn with two overcards staring me in the face how often am I beat? Take the QT2 board with the 7s. The players i play against are calling with 9t, any pocket pairs smaller than mine and aj and ak as well as all the garbage which has me beat and almost drawing dead.

Am I okay to play almost 2 card poker here or would a few more laydowns help me?

What's the ideal went to SD% on PT and what folds are in order to hit that figure?

Comments appreciated.