How come my commission on IBKR to sell 30 Contracts was -$0.06?

[ET180]

That's why I said if you have the time. It really depends on what you are trading. If you are trading options such the are moving quickly, I agree with you, smart routing is probably best.

I tend to trade a lot of back month out of the money puts where time is not of the essence. Here my method seems to work best.

For longer duration options, that could work...price won't be moving as fast. I mostly trade shorter duration.