Physics of the longbow limb??????

[Bullfrog]

What are you thoughts on narrow thick limb vs wide thin core. Trapezoid vs Reverse trapezoid?  Thanks.   BILL

[JRY309]

A narrow thick limb is usally a Hill style bow with longer limbs to me.Wide thin limb core allows the bow to be shorter or more of your R/D type bows.I like a reverse trap but hard to tell the difference between the two.My Matlock doesn't have either,but pound for pound one of my fastest bows.