I have been daytrading ES and NQ regularly now and I am thinking of ramping up the size of my lot size. I went from a 1 lot trader to a 2 lot trader at the beginning of the year after being a 1 lot trader for 15 months. Now the September contract has just started trading and I'm thinking that now is the time to increase the number again. Do I go to 3 ... 4 ... or 5 contracts. What's the rule of thumb? There will be a period of time before I make the adjustment to the net changes in dollars gained/lost in the account per day. After all it took me probably a month to get used to trading 2 lots Has anybody else made these same adjustments?