I'm curious, do you see more trade signals on the 10 second charts or just better entries/exits into your trades ??? I've messed around with timeframes that low and the price action was just too fast for me. In fact, I came to the conclusion it required automation trading. wrbtrader
Note that I don't actually use time based charts, I use a variant of trades per bar. I find this better represents price movement regardless of the passage of time. They (time & price based) appear to behave pretty well as far as price action goes when things are busy. At lower time frames, you appear to have multiple phases of a full market cycle playing out every single day. Fewer surprises for me that make me say "well I definitely didn't see that coming". Very rarely am I surprised by the market, moreso by my own stupidity. At the higher time frames, the "problem" is that you have people who need to defend positions so obvious bear flags become bull flags, head and shoulders tops are bull flags, double tops are bull flags, etc c.f. the entire last 12 months. Trading lower time frames requires a technical mind that is uninterrupted by the emotion of a PnL, which I am personally still working on but have mostly mastered. I don't think it requires automation, but it does require a system and adequate funding. Just my 2c, don't listen to me until I am a 7 figure trader.
2 tick renko bricks? Are you nuts? That would be noise-o-rama! Besides, 2 ticks is not an instrument.
Noise or signal, something is missing from the convo... Barring exchange membership, 1 tick is needed at a minimum to break even on ES micro. 2 ticks needed on other micro US index products.