Different lot size in same amount with different broker

I am running Aeron EA on 2 demo accounts with InstaTrader & Prime4x. Both A/Cs were initially deposited with $3000. On InstaTrader EA opened a lot of size 0.20 while on Prime4x the opened lot size was 0.02 within same balance ($3000). Why has the EA decreased the lot sizes on the Prime4x metatrader platform?  Both brokers allowing 4 digits trades (i.e. Euro price upto 4 decimal places). I have setted FreeMargin_for_AutoLots = 1.0 for both the accounts. I am unable to understand. Please clarify. Thanks.
GM

Hi GMforex,
As you are concern about different lots size on same amount $3000 with Instatrader & Prime4x, so you may understand it's working as follows:

• It can happen only when AutoLots=TRUE
• Now suppose you set 1% margin to the parameter FreeMargin-for-AutoLots, now it will use the 1% of $3000 i.e. $30 for calculating lots size. May be in Instatrader it can open atmost 0.2 lots in $30 while in case Prime4x it can open atmost only 0.02 in $30.
• Don't be confused with 4-digit & 5-digit, Aeron EA automatic recognizes this, and it doesn't affect the working of EA in anyway.

machala