When i first started out weight training at 14years old at the local leisure centre,for some reason i loved the pullover machine,god knows why but i did and would regularly do set after set on it(probably did 10sets on it most times in there),anyway,i never really hit my chest hard cos i never wanted a big chest(again,god knows why).
Within 3months of this,i'd gone from a 38'' chest to a 44''.....and looked like LATMAN!!:crazy::crazy:
Seriously,i'd no chest,just massive wings sticking out the sides and abs that were on par with the guy off the Levi's ads in the 80's!!(not bad for a 14year old).
I must also add,that during this crazy pullover phase,i could rarely lift my arms so my arms were parallel with my shoulders and was lifting the whole stack of weights on there(100kg) which was way more than anyone else in there.
In the end the health and safety Nazi's removed the machine along with the free weights so i changed gyms eventually......they're still respectable now but i think i was by far leaner back in them days.
Strange thing is,i just dont get any good feeling from barbell/dumbell pullovers.
Hope that helps.