Never. Started over a decade ago. Couldn't find any patterns that tested as significantly positive so never saw the point. Had a mentor. He used charts slightly more than I did. Meaning weekly to trade intraday.
You don't need charts, just price quotes, you end up developing a internal moving average. And know whether to bid or offer based on the mental time series built in. That's how it was done in the pit by specs .. scalpers same thing but took the spread instantly. Specs waited for larger ranges to exit positions. Easily scratch losers till one position made up for all the losses and than some. On the boards you had the opening range and highs and lows. Those were your reference points. And if you usually remembered yesterdays ranges. Or weekly ranges.
Honestly, why trade without charts. Maybe someone can explain to me, has charts got any bad sides that can ruin your trades?
some look at ladder bid / offer volume. some look at crystal ball, stars and those things. No comment about their success rate.
I trade with robot, which does not look at chart, not because I do not want, but because coding chart is too complex.
Equity index spreads. Intraday. Systematic with a little discretion. Neither fundamental or technical apply. Reversion more than momentum.
I don't know how but we started without charts and TA, we simply did not know about. We would analyze close prices, compare with previous days and predict what can be our expectations for the next day. And made a very nice profit. As today I believe it was pure luck, I found trading without charts is very intuitive and stressful, much more similar to a casino than with the real art of trading. But it is for me. Once it fits somebody, as I see here other posters as well - good luck to them.
On the testimonials on www.jurikres.com someone has set their bars to the same colour as the background and just uses the fast moving average.
That's the point, the market has moved past some things and it's ever evolving. We just have to keep pace with it.