I have run a few scenarios based on BK trading results. I have considered an account of 1:100 from a standard lot and 1:200 leverage during trading.
Scenario 1, called 1-1-1-1-1, would have brought a return of 405pips, which can translate 40% and 1000 invested only. You never need more than 1000 margin.
Scenario 2, called 1-1-1-2-4, would have brought a return of 677pips, or 67% and maximum 2000 in margin.
Scenario 3, called 1-1-2-4-8, would have brought a return of 1145 pips, or 114% and maximum 2000 margin.
Scenario 4, called 1-2-4-8-16, would have brought a return of 1581 pips, or 158% but would require 4000 margin worst case scenario.
It is very interesting that same trades make Q2 a losing quarter in case of 1-1-1-1-1 and 1-1-1-2-4 but a winning quarter in case of 1-1-2-4-8 and 1-2-4-8-16.
Based on all this I recommend for myself running 1 year with 1-1-2-4-8 having 1:50 margin and with 1:200 leverage trades and only double the trades at the beginning of Q2 and Q4 if the margin in the account is doubling.