replying to Charlie Bress, 404unimog wrote:
I think this will clear things up. The reduced shank and the smaller tip size
is there to reduce the chance of tearing the paper or reaming the paper from
around the tapered screw head. if the screw is set to deep or the paper tares
that reduces that screws hold strength x 65% or more even after finishing Plus
remember paper tape is used to bond two sheets together for strength and fire
proofing as well

And also as stated The tip don't ream the screw hole so wide when counter
sinking into wood

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