I am not sure but it seems in your second paragraph that you are using zig zag to tell you where the trades are.That is NOT what you want to do. The zig zag only gives you an idea of how many cycles there may be. You keep using Aim for buy and sell signals.
If you want to double the shares you trade, PRETEND you own twice as many shares and make MIN TRADE SIZE 10% PC will be twice the size also.
You risk running out of shares to sell and other unintended consequences.
Toofuzzy
Take the road less traveled. It will make all the difference.