Nice collection. And I thought I had supply of blades! Looks like you're set for life.

Did you go right to an alu lower rotor head or break a few, along with blades, before you switched? I'm on my third lower head now (and several fractured blades) but wanted to stay with plastic to keep the weight down. Am considering upgrading and sacrifice weight for durability. Plastic's cheap--until you keep buying enough of them to pay for one or two aluminum ones.

Does anyone know if you're more likely to tweak a shaft or break gear teeth with an alu lower head, as opposed to having the plastic head take the brunt of the shock?