New here. 4 handed, heads up with that hand. You will be in position, It's a raise everytime. That is how you gain on the blind outs and those waiting to get in the money. If they call, you have position, you have a bigger pot. With the better starting hand you wound up with the better flop and with him calling that raise in my scenario, caught a bad piece. Considering how he played the 5s and went allin, it's likely in my scenario you'd pause to call but then do so. Definitely would be a scenario where making the call after your raise be more disconcerning. Higher PP? But with the Ace kicker I'm calling off top pair more likely then not short handed.