If it is an ordinary 2 shoe or 4 shoe clutch setup, I just fit the spring on the shoes first then press the clutch shoes with spring on to the flywheel. Some pressure will need to be applied in order to stretch the spring to fit the shoes on the flywheel pins. What do you mean by hard or easy to move. Depending on how strong the clutch spring is, will determine how hard/easy it is to move the shoes as if they were engaging. You really can't go wrong. Even if you install the shoes backwards as if they were digging in to the clutch bell when engaged, it will still work.

Ryan