Send the blades back to Leitz. Seeing as they made them, I'm pretty sure they can sharpen them. [wink]
Actually I know they can sharpen them, they sharpen all of my blades.
I sent out;
1- 60 tooth Kapex blade
6- TS 55 48 tooth blades
1-TS 55 28 tooth blade
1- Festool 19mm mortising router bit.
Turn around time was 5 days. Cedar Lake In., to Grands Rapids MI., sharpened, and back in my hands.
They'll sharpen anyones blade, including Forrest, better than Forrest does.
Here is their locations section of their website, call the number, press 1. If you trust the post office a a medium priority mail box held all of the above blades in their original sleeves. Leitz returns my blades to me in the original sleeves.
http://www.leitztooling.com/locations.htm
I know someone who sent Tenneryu blades to Leitz, they came back with the tooth geometry hand written on the blade. They really do know what they are doing.
Tom