I have little doubt that Buzzy could kill it today trading the ES. Don't forget, he had to phone his trades into the S&P pit. Of course, he had good brokers working his trades, but he could still never be on equal footing with the locals. Now, he would be.
He made a bundle trading options too. As I recall, it was nothing too sophisticated, just basically using them as leveraged trades to play the underlying.
I have a lot of time for Buzzy. His book was one of the factors that turned me around as a newb and helped me understand the crucial rule: it doesn't matter if you're right or wrong, all that matters is making money.