Simbo
Tour Rookie
Looking at what the low cat1 guys at my course do, they all hit balls,practice wedge shots and then practice putting before their round starts. More than coincidental that these guys are consistently carding competitive rounds in the low 70s.
There's a difference between practising and warming up IMO. I very seldom practice before a round but I always warm up, even in the dark, as long as I can see the ball at my feet it doesn't really matter where it goes as all I'm doing is loosing the swing muscles up.