The 320 club
AGE AT DEBUT
Lockyer 18
Menzies 19
Lamb 19
Fittler 17
Lyons 19
Hindmarsh 18
Ettingshausen 17
Gerard 19
SEASONS
Lockyer 16
Menzies 15
Lamb 17
Fittler 17
Lyons 16
Hindmarsh 16
Ettingshausen 16
Gerard 15
AVERAGE GAMES PER SEASON
Lockyer 22.8
Menzies 23.2
Lamb 20.5
Fittler 19.8
Lyons 20.7
Hindmarsh 20.7
Ettingshausen 20.7
Gerard 21.3
Basically, you need to debut at 18 or 19, and have played 150 fg games in 7 seasons (25 yrs old), and play for around a decade after that, with minimal injuries.
Which makes Mick Cronin's 216 fg games all the more remarkable, and he didnt start until he was 27! At an average of 21.6 games per season, and having made Gerringing's FG side at 17 - there's a 20 year career that could have been around 430 fg games had they all been with Sydney clubs.