Certainly Econ Bokin arrows may not penerate High end FULL Plate.
But, getting hit 2 or 3 or 4 times per minute, while not killing you outright will render you less than effective. Think of it like individual "supression fire" of a knight
At 100 yards with a relatively flat trajectory;
1st hit RHS Chest; Loud thump, balance momentarily lost...feels like a small horse just kicked you.
2nd hit, Shield; Arrow caught, left arm ripped back violently..no apparent damage.
3rd hit, glancing blow to helmet; head snaps back...and to the left, vision clouds, 2nd degree whiplash sustained.
Distance travelled...40 yards, 60 to go. 3 more hits to take and each one harder than the last.
I'm not saying the Longbow has punched through Plate Armour...but does it really need to?? Once the young French laddie has made it past all that, and he can still stand upright and still knows the name of the girl he spent the night with before the battle, then there are some crazed english physco's wait to cave his skull in with a war hammer.
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