Holy fucking shit, thank you.
I have never seen a truer post on this forum in all my life. I've said this a thousand times: There's a difference between "Hey, I'm playing my boy Ted, he always jumps in at the start of the round, I'll uppercut him" and taking a complete and total stab in the dark. Off the start of every match, back dash and block. If your opponent does anything, you will be at an advantage 100% of the time, period. If they jump in, they'll miss and you can retaliate. If they do an unsafe special, you can block and punish. If they whiff anything, jump back or do a NJP, you have frame advantage. There is never any reason NOT to do this, and all you really have to do is be ready to block low on reaction against any character with a low-hitting special.
The only, ONLY time you should even risk using a special off the start of the match is when you know there's absolutely no risk of being punished, which is absolutely matchup-specific. Protip: Pretty much every character in the top ten makes this impossible. Raiden and Kung Lao can teleport, Jax can EX dash punch, Kabal can IAF or EX dash, Cage can EX shadow kick, the list goes on. Anyone with armor can fuck you up for even attempting to do anything that isn't back dash + block off the start of the round.
Also, Sektor's F2 B1 is terrible, it's full combo punishable on block. His naked F2 is one of the best normals in the game. It's fast, it lunges forward, it hits mid, it's advantage on block and most importantly, it blows up low hitbox characters. Sektor absolutely NEEDS this to pressure his opponent, because his 1 and 2 strings can be ducked every time and B3 4 is unsafe. Sektor is one of my best characters, and one of the three I took to Canada Cup (and will be taking to Winter Brawl). From all my time playing him, I can guarantee you that any character in the game will just poke you out of every string if you aren't making expert use of D1, D3, D4 and F2.