Raising with split aces in 7CS high

This seems like one the most simple questions regarding how to play your hand in 7CS. Let's make a couple of assumptions to set the table for my thoughts on the matter. Say you are playing a 2/4 or 3/6 game on pokerstars, which both have small ante's (.25). The table is fairly loose with 40% seeing 4th street and most pots going to showdown.

Let's say I get dealt (As 8s) Ac two spots to the right of the bring-in and there are 3 players who call the bring-in. Alot of times I will simply call the bet instead of raising in that position. My rationale is as follows: (1) I am disguising my hand by doing so and am more likely to get paid off on later streets. In the case where I pair my door ace or make two pair on 4th or 5th, I am more likely to get called. If I raise in that position, only the worst players would call if I paired my door card. (2) Adding an extra bet in that situation isn't likely to get anyone to fold since they will be getting about 8:1 to call, also raising here also gives drawing hands better odds to chase on later streets.

How do I play the rest of the hand? I always bet on 4th street, and if someone has bet before me I will raise. Betting and raising here is critical because you want to get 1 or 2 of the initial callers out of the pot. I will hardly ever flat call in this situation because it encourages people behind you to call, plus you get no information about where you stand. I might fold if someone has paired their door card and I have notes that they are decent, although I am more likely to raise in this spot. If the person keeps jamming it, I'll likely muck my hand by 5th, if unimproved.

How about if I have the same hand, but am first to act after the bring-in? I will almost always raise in this spot. I give away the strength of my hand, but raising here forces people to put in 2 bets with worse hand when they aren't getting such good odds.

I haven't diligently worked out the math to prove that this is the correct play, and I'm not even sure that is possible. In fact, it might be the exact wrong way to play it. But at the limits I am playing right now, I think it is a reasonable approach. I would like to hear others input.