ORIGINAL: BobCo19-65
I would think that a vented head will plane more then a solid head, doesn't matter if it is two or three blades.
I wrote that wrong, should be:
I would think that a
non-vented head will plane more then avented head, doesn't matter if it is two or three blades.
Lol!! I knew what you meant Bob.

I feel the same way as you.