Yeah, a lot has changed in 17 years. I was mostly working legit arbs (COMS multi-listed under RAES) and rate arbitrage in the early 2000s. That, and unwinding of the telecom dereg and internet bubble. I didn't start making stupid money until I traded a bias. I've made more in the last four years than the prior twenty. I've doubled my net liq three times in the last four(years).
Don't trade neutral... even if it means a large reduction in exposure. I am not stating that you can't trade neutral wings, but it's not a trading strategy. And I am referring to systematic vol-sales via ICs and the like. It will always end badly unless you can time it or hedge in D1 or cheap verticals.
I am essentially trading permutations of one position in vol now. It's not flies, but I still trade flies in large size for a three to seven day hold.
Use wins to finance wing buys (deep verts). Trade futures around your position. Stick to liquid contracts. Work on a skew and smile model. Believe what you see and predict where it will be (sticky models).