Gerry, Jeff, Igor, here is a copy of an old post on the Radial Saw forum regarding this blade.
" Charles at Forrest, explained that the TCP (Triple Chip Grind) design of the WWI was done because of Wally Kunkels,(Mr. Sawdust) imput. Wally felt the blade was symmetrical and therefore was omni directional and pulled less. (I agree)
Forrest went with the ATB grind to be a bit more plywood friendly. The 30 degrees of the profile helps sever the ply cleaner."
So if you going to be doing a lot of cross cut ply work you might be happy to stay with the ATB. If you want to do some intricate multi directional hardwood work you want the WW1 TCP, it's a true universal blade for the RAS. It has a 5 deg positive kook on the teeth which helps it perform in the rip position.