Scaling in Forex only seems to work up to maybe 5 Lots in my experience. It only takes one bad trading week to kill your whole account if you go larger.
Remember back to January 2015 when the Swiss Franc was unpegged, at least over 20 aussie retail investors who traded with large size trades suddenly got hit with over a million dollar margin call. Many lost their homes as well.
When it fell, there was zero liquidity so they couldn't close the positions. My broker FXCM lost 300 million US dollars and it had to be bailed out themselves. The problem is large leverage which helps when you trade with small accounts but works against you when you trade large.
