DavidSA wrote:I must be the lucky one, my 13 and 16 mets have been perfect, both US and JDM versions. I've not cracked my 16 Mets open but that does look like a killer Alum gear. If I see wear on my Alum main I will consider brass but changing when I'm not having any problems does not make sense.
In other threads I've posted that I find it ironic that my go to cranking reels and spinnterbait reels are old Revo Premier Gen 1 and 2. I think they are full Alum and never any problems after years of use.
Agreed, I must be VERY lucky, I have an SS/SV that makes me happy. I think Shimano's use of aluminum gears stands to evolve quickly. I am not sure how or if they cold forge baitcasting aluminum gears, but that is one concept/gimmick that actually seems to work. In inorganic chemistry and physics I learned to understand the principles they explain about forging a puck into a gear versus machining one. I am not sure if micro module teeth can be pressed (forged) that way, but I do understand from a scientific point why Shimano's cold forged gear is important.