Originally Posted by halfspeed
...If two bikes have the same amount of trail they will respond to steering input the same way regardless of the angle or bend of the fork...
Agreed. Multiple factors, though, affect the trail - head tube angle and fork rake being two. Of the two, head tube angle has a MUCH larger effect on the total trail of the system.
One can obtain the SAME trail with multiple combos of head tube angle and fork rake. However, if the head tube angle remains constant and the fork rake is reduced, the trail increases (increasing steering stability).