SLEGO,
super helpful response. thank you.
the key phrase from your response: "i get really good fills usually always just as good as official alerts or better".
i've only been with SO a short time, but I feel order execution is critical to success. If you lose 2-3% on entry and 2-3% on exit and then add commissions, you'll have a hard time being successful. On my paper trading, I allow myself a 1-1.5% allowance on the official printed trade price. If I can't get within 1-1.5% of that price, I don't do the trade. Over time, the price slippage will eat into your returns significantly, that's why order entry and execution is critical.
I've been with Fidelity for 20+ years and was frankly shocked that they were offering such competitive pricing on options trading. Their trade execution has always been excellent and I believe it's a function of their size and history. I'm glad to hear that you've had a positive experience with them. I think I will use them once I go LIVE.