Dunno what the Party line on this is, but you can almost always leave reeling the line on the spool to the stop(s), if you feel task-loaded. Of course reeling while ascending is good practice and all, but sometimes I'm too lazy for that. On a stop a buddy can hold the SMB line taut while you haul the spool up and reel in the slack. Reeling on the surface tends to lead to spaghetti if there's anything else to concentrate on, like a pickup boat, so it's best to have the line on the spool by then.
//LN