On a spinning reel, the spool should be open as if you want to cast, this is to allow the line to coil off correctly, if you use your drag the line will not coil off correctly and you will soon add a tremendous amount of twist into the line that is undesirable.On centre pin reels you should adjust the casting drag so that the reel spins freely but not too freely causing over winds. So when you fly out you will switch the reel to cast mode with a very slight resistance.It is not advisable to use the ratchet “clicker” as you will wear it out very rapidly.