Hardened Steel Pinions?

[BrianG]

Thank you Mike!! That was a very thorough and easily understood explanation.

Just the fact the emaxx top gear and idler work fine under BL (thanks for pointing that out - I hadn't even thought of that!) makes me think it should be fine IF, as you said, the mesh remains perfect.

Maybe you could sell those hardened pinions on a case-by-case basis? Maybe put a bold-face note or disclaimer on the product description which summarizes what you said above? Even if people still ruin a few pinions, everyone here KNOWS you don't offer shoddy products. It's a shame to have spent capital on making a product and not selling it simply because of a customer's proper use.