It's all fine and dandy until your account balance goes below 15k, then you need to do 3 trades/qtr which means 12 trades/year. With NBDB you are not bound to trade qtrly or semi-annualy. You can make 5 trades anytime in a year.
Oh sada kehra bapu karda black nee, Jehra tere shahir (Toronto), Le lawan flat nee