The main thing that hinders finding the dot on the draw is your draw itself. If you can look at something, close your eyes, draw to it, and then open your eyes at the end of the draw to see your sights in good alignment on target you should have no trouble finding the dot on the draw.
It's much easier with a long gun because it's touching your face, shoulder, and both hands. The pistol is just at the end of your arms.