Racing 'nerds' Brad Gray and Adrian Sciglitano are putting their extensive horse racing knowledge to good use, with a brand new show, Rough Habits.The goal is to take their combined 26 hours of form preparation for the weekend's racing and produce a digestible guide of where the best runners and riders will be.This week, they bust the myth of worries around overseas horses returning to Australia, give their 3YO power rankings and burst the bubble on one of the favourites riding at Randwick this weekend.They also give their best bets and group quaddie in their Let It Ride segment, as well as a roughie to keep an eye on.