The felt pad provides a bit of cushion which help correct for paradox.
An arrow bends upon release as the back of the arrow attempts to pass the front. Because the enerhy from the bow string is forcing the arrow forward from ots resting position. Newton's laws.
The arrow naturally bend then away from.the riser and out around the bow window to varying degree as a result of the release and even a bit of roll.off of your fingers. Dynamic spine.
Arrows too stiff will show hen feather wear and may even strike the bow window upon release. You can usually hear the sound of such.
