Aluminum sprockets for drive train - several questions

[M. Mellott]

Does anyone have experience with using AndyMark aluminum plate sprockets (6061 aluminum) in a drive train application? Would steel chain eat them for lunch in a high-torque application like a drive train, or will they hold up? By how much would annodizing the sprockets help the wear properties (if any)? How do the new 7075 aluminum sprockets handle steel chain?

Typically, our team has run steel sprockets with steel chain (35-series) for our drive trains in the the past (mostly for the durability), but we were looking at other lighter options.

Now, before it's mentioned, I know 25-series is a lighter option, but the 25vs35 debate is in several other threads. I would also be interested, however, if anyone uses the 25-series aluminum sprockets in a drive train application and their experiences.