If FAG has the same type of specification table for the 10-6495a bearing that Roehling provides for Sustamid 6, a comparison would help settle matters. Sustamid already has a track record of successful use as bearing and bushing material in machinery.
The drawback here is that you need to rely on the precision of the vendor's machining without having any references for them as a company—that I could find anyway. Additionally, they have only been able to estimate the product's lifespan because its road-testing is still underway. It's encouraging that they're open about that. It also appears that this product is really new to the market. It has not created havoc with their test moto so they're saying, Feck it; let's sell some! :giggles Right on!
Consider yourself a test pilot if you go for this. I'll be surprised if there's a cascade of user reports on this one any time soon.