With A7o, I raised to 31,000 and was called by seat 7 and seat 1. The flop was [A Q 4]. One check ahead of me and I bet 25,000. "I did not think that I had to worry about spades so I did not need to make a bet that would discourage draws such as a half the pot bet."
Why did you not think you had to worry about spades? Seems like a conclusion made to justify the fact that you wanted to bet...
Four handed, suited cards and connected cards are less valuable. Pairs and big cards are more valuable. These players all seemed solid so I did not think it likely that they stayed on a suited hand pre-flop.
Also, having raised pre-flop and made top pair, which is a fairly good hand short-handed, I wanted to continue my aggression. Also, if I had bet an amount that would discourage flush draws (half the pot), it was too big a portin of my chips and I would have felt pot committed. And if I was going to call a push after making a half the pot bet, I needeed to push myself.