@ the 9min mark, the fee calculation had 2MM used for the change in fee totals, instead of the 20MM vol used for calculating the original fee rate. I'm sure this is very well tracked since you operate on small margins where fees would eat you, but I wanted to bring it up for anyone else reading this & learning, who thinks the fees won't make a big impact (especially when you reach the point of fee rate reduction). His total difference on a 20MM volume would be $4000 per month by having a .0002 lower rate. Utilizing Maker vs Taker will ultimately be the largest gap, but any reduction does add up, especially if you are beginning & have a lower win:loss rate or are chasing trades and racking them up by market executing.