piana did this... he was the first big plastic balloon man - demonstrating the potentiality of pmma
all it took was for people to see piana bounce his hyper inflated pecs... and eyes were opened - the precedent was set.
pmma retains shape to a degree, evenly distributing thru the muscle, allowing for some measure of movement without looking completely unnatural.
extra large/maximal fullness, not as sharp - but somewhat passable as muscle.
size on demand... body modification indeed.
that's why they all look the same, they are the same.. and none of these guys are going to have a good outcome.