Any side-effects after enabling "Quick AFL" in Analysis settings for backtesting?

I enable "Quick AFL" in Analysis settings for backtesting. I do not know what exactly it does but I enabled it since it sounds like it will speed up performance.

What are some side effects or disadvantages after enabling "Quick AFL" for backtesting? Will backtesting results be distorted in any way?

Explained in the Knowledge Base: http://www.amibroker.com/kb/2008/07/03/quickafl/

It does not "distort" results. It just takes LESS data as input. Typically you don't need data from 1930 if you are backtesting years 20xx (unless you are using some "total sum of entire history" for something)

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