Okay, I pretty much don't use machines at all except for maybe the lat pulldown and the tricep pushdown to warm up my elbows before I bench. I powerlift, so I don't really have much use for machines. But it does make me wonder: what exactly is the difference results wise between using machines and free weights?
I know that obviously freeweights use more stabilisers, and some machines like the smith machine are bad for your knees. But in terms of building muscle mass, why the preference to freeweights? I mean as far as I know stabilisers are fairly small muscles, and aren't going to make a large contribution to muscle mass. So what gives?