He is not trading anymore actively. I suspect he has long term positions he sits on. I do know some of his traders in Miami and they use them.
He didn't mention number lines, but he said that [paraphrasing] "simply buying A & C ups no longer works, so we are looking at more and Fisher bars are part of that." From his description it seems like Fisher bars help combine price action with velocity and volume, which he believes is necessary in today's markets.
Breadth of traders....he's probably trying to appeal to as many traders as possible...seeing that ES is so popular.
Jan vol is rich. Sentiment is not bearish, it's pretty bullish. Hedge funds in sept had their most bullish position since 2014. Supply is right at about 4 trillion cubic feet but injection rates are slightly tighter this year then last. The northeast is getting their first snowfall now so let the games begin!
Most interesting is basis, they supply dynamics are bearish but bottlenecks possibly worse than ever as demand has been creeping