David,
I am using the brake linings available through the LDMCC spares scheme on my DT engined sprinter. These linings bring the bike back down from 100+mph without too many worries, and are of a woven construction. When I fitted the linings, I Araldited and riveted them to the bands to eliminate most of the sponginess. I believe this material has a code number of 3806 and is probably the best non-asbestos material available (virtually as good as the old Ferodo material).
Regards,
Eddie.