Say i have few Lack cash,now even if i consume the entire amount to hold few scrips in cash mkt,the broker always give margin on it,so for my Nifty Fut intraday i practically do not need any extra cash.The scenario was more like corporates earning from efficient money mgmt. by treasury deptt. a extra mileage derived by the same money.
Now a days that Money is idle,you can say that now i can increase my Lot No.s than earlier,but there enters the psychology part.
If i am accoustomed with say 12 lots i dont feel comfortable with 24 lots,max it can go up by 4 lots more,moreover the Risk part also the reward part ,as per my previous years ledger it is evident that the proficiency is more in Swing Trades than Intraday.Hence the Lot size stays at the earlier Lot of 12 only.