Have to say I thought The Balkans (aka Fear Factory) was ten times better than Lindfield. A bit more hassle to get to be but worth the effort IMO.
Pretty sure we used to get the bus to Sissy too. A bit old school and eliminate but the rock is superb, this is no Minus Ten.
The Balkans and the Fear Factory are two different places. The Balkans is broken into two areas - the Frontline and the Trenches. A lot of people refer to the whole place generally as the Frontline which is probably what you're thinking of.
Without a car the place its a massive hassle. Public transport in NW Sydney is a bit of a myth
No manky mattress at Sissy any more- We've even had a clean up day when the whole thing got washed with a gurney. 2 days later it was covered in chalk again like nothing had ever happened..........
It can be done on the bus and this would be a lot easier without a pad. However, with the humidity at the moment and general difficulty of the problems to a first timer, its not recommended.