My father could do a perfect riffle shuffle repeatedly, and do the classic fan fold and so forth --- perfected this technique playing cards on troop ships going from one duty station to another.
John Scarne wrote extensively on this in his various books --- _Scarne on Cards_ is well-worth reading, and in particular, speaks of the need for practice and repetition to develop the dexterity and feel necessary for card manipulation/tricks.
John Scarne wrote extensively on this in his various books --- _Scarne on Cards_ is well-worth reading, and in particular, speaks of the need for practice and repetition to develop the dexterity and feel necessary for card manipulation/tricks.