[Man of Means]

The way you describe the postflop action seems like big card top pair and overpair hands are going to make a lot of money through the swings. You'll also be able to play suited connectors in position in huge multiway pots. e.g. 98s has 17.7% equity against 6 random hands and with the loose passive postflop play you will get to draw cheaply and be paid off. But if you are satisfied with your win rate and image then mainly playing premium hands is ok too.

As you realize, isolation won't be your goal preflop, it will be sheer value. So with any potential straddle raise, ask yourself if there's value in it and would you normally raise this hand in UTG+1 if you expected callers?