Felder sent out this video today that I think some of you may be interested in seeing: slow motion action of sawing, shaping, and scoring various woods and panels. It gives a really good picture of what actually happens at the point of impact between the blade or cutter and the wood.
https://www.youtube.com/watch?v=lPA_mcZ4qb4
https://www.youtube.com/watch?v=lPA_mcZ4qb4