Re: Wheel Q's. (auxo)
it really depends on the roads you ride and whether you do only street, track, or street/track riding.
a friend of mine got the forged Al Carrozzeria's. I've seen them and handled them. they are VERY nice, pretty light, and approved for road use in Japan (JWL). plus, you can't beat the price!
i am waiting on my forged Al PVM's, which are approved for road use in Germany (TUV).
we both like the fact that forged Al is lighter than the OEM cast rims but still provide a margin of safety (over Mg and CF rims) and are a "fit and forget" product (don't have to worry about them or x-ray/test them like with Mg and CF rims). risk versus reward!
forged Mg is even lighter than forged Al but some question the material's ability to bend instead of crack, the material's oxidation properties when exposed to air, etc...
the forging proces makes forged rims stronger and "truer" than comparable cast Al or cast Mg rims.
but no rim is immune from breaking/cracking/etc.. under given circumstances.
i'd do as much research into it before deciding on a set of rims.