Problem with anything involving data ,volume, ticks on nt8 and you do playback you trade 1 second agregated data so for me always been a waste of time you can only test live else is gonna be a huge down in realtime ...
For example machine learning daytrading on playback is one thing realtime complete disaster as orderbook events on playback are worthless..
still no matter what ai to use tocode or modify they hesitate and make tons of mistakes so relying in only 1 is a downfall try chatllms where you have 20 ai in 1 place ..
still amazed on how this orderflow analitica l2azimuth gets those high winning days using ML..