My experience of
HA vs
PMMA is I prefer the
PMMA feel. Not a huge difference
Erect wise,
PMMA is a tad firmer but both feel natural.
Flaccid is where
PMMA is king, in my opinion. As a
Grower who turtles like mad,
PMMA makes my
Flaccid huge and feels solid, like having a constant chubby.
HA made it bulbous like a big squishy stress ball.