An idea?...

Here is a suggestion. Can Metaquotes add the ability to optimize the optimisation criteria in order to get the criteria that has the best walk-forward?

Let's take a simple example of a criteria that considers relative drawdown and profit. If these properties each had a weight per criteria, these weights could then be optimized within a series of optimisations!

I know it sounds convoluted but once properties are more than two, say we had Sharpe, balance curve deviation etc this could glean more info on a strategy especially if focus is on quality of walk forward.
Also phase out hcc files. All OHLC and last price data will be generated from tkc files and stored in cache.

This may explain slow MT5 adoption besides inability to have custom prices for a long time. (Only recently added)

Tick error prices are a big deal imo.