Read a lot online, and the reports seem pretty good - looks like it's very adjustable, and makes certain techniques (ie palm muting) easy.
Was going to go for the alluminium one - by all accounts the brass is quite heavy. The alluminium option seems to keep the same tone, but some say it makes things crisper.
Appreciate some opinion may divided on these, but I'd love hear from anyone who has fitted one to a modern 4003. Pics as well - especially if Fireglo!
