CHEMICAL WARFARE has been most progressive this season and, having shaped as if still in good order at Wetherby last month, David Pipe's 7-y-o can notch victory number 6 of the campaign at the expense of Nothin To Ask, who showed the benefit of his Chepstow run last time and the handicapper continues to relinquish his grip. Chasing-debutant Basford rounds off the shortlist.