the ASX in their wisdom introduced "centre point trading" about 3 weeks ago, have a read of the so called rules here, as i have said, retail traders are UNABLE to do this, only the big boys, and a quarter of a cent in VBA which is only a 29c share at the moment, equates to almost ONE PER CENT ADVANTAGE to instos, nice head start.
http://www.asx.com.au/professionals/pdf/asx_trade_new_order_types.pdf