You're too quick for me! ♦ Downloading
Looking at the 5$ SNG, raising 28o is better than limping it, when playing its either raise or fold, keeping your c-bets the same and always betting the same when you hit the flop or you don't, never check behind unless you have equity to win the hand (if you feel you're behind). Especially at 5$, you want to bet for value.
Your A5o hand in the BB, raising is fine but when you flat call his limp 3-bet, you're OOP with a weak ace against what is a strange play, it's best just to fold it pre flop, after he limp 3-bets you. However when you called his 3-bet, betting out on that flop is I think standard (correct me if i'm wrong :P). Paired boards and ace high are always good to barrel on.
Flopping the nuts, betting out is good play, the pot is small, and you get players to over play their 2 pair etc. Calling his 3-bet is probably the best play, he's the type of player that'll 2nd barrel his bluff or 2 pair, let him spew his chips away
Min 4-betting isn't advisable
I think c/r the turn would be a better option, or bet slightly smaller to bluff induce.
Nice disciplined fold with 3's.
Your 58o hand, I think either 3-bet folding, or folding is better than flat calling, it does hit his range with the flush draw especially. The blinds are that small, you can pick better spots.
When playing HU, flat calling 3-bets with weak aces (and the blinds as they are) is -EV in the long term, give him credit (I know its hard) and fold, he'll think he can do 3-bet's pre flop more often and you can punish him later on.
It's best to bet your gutshots on the flop, if you get min raised you can peel a card off.
I'm gonna have to bail for a bit, I hope what I'm suggesting is optimal, gonna conclude with saying one thing - POSITION