Most aluminum parts are just for the bling factor, yeah aluminum bulkheads is a must have, having
that strengthens the other parts. Never tried boiling plastic parts to make them stronger might have to try that
sometime. People used to do that in the old days whenever the RC10 came out, but I dont know
if I should boil my B44 a-arms or not. Might not work.
I know I have not broken one in a long time.
Aluminum caster blocks usually come in handy since you normally have more mounting holes for setups.
I bought the plastic caster blocks for my 501x and thier's only 1 mounting hole, so I just left the aluminum ones
on there.