This will certainly increase my cost.
I trade longer time frames (weeks to months) and sometimes I enter orders and if the market doesnt behave as I expected, I cancel the order and sometimes reenter the next day or several days later. In the long run my execution to cancel ratio would be 1 to 3, but I will end up paying cancel money because there will be days when I cancel and dont execute.
However, my second account with another brokerage doesnt seem to have this problem, so I will have to use that one for Globex trades.