Ramsay subtlety is with a coin in fingerpalm. Palm towards the spectators with the coin about parallel with the floor. They can see the inside of the palm but not the inside of the fingers. Kaps subtlety (i think originally credited to max malini but kaps popularized it) is with the coin classic palm with the hand palm up pink towards the body thumb toward the spectator and the hand tilted enough toward the body that the coin can't be seen. But the impression is given that the hand is seen empty.
That totally makes sense because Jay taught that also but he called it the Malini subtlety.