Did mean spool? You were calling your spool a reel. Whether a reel or a spool, it only matters from what depth you’re shooting your SMB, and what one prefers to work with.
I think both spool and reel can be used. Mostly it seems people call them reels. www.deepbluedive.com/diving/reels-smb-lift-bags.html#:~:text=Diving%20reels%20are%20usually%20used,and%20for%20general%20diver%20training.
Did mean spool? You were calling your spool a reel. Whether a reel or a spool, it only matters from what depth you’re shooting your SMB, and what one prefers to work with.
I think both spool and reel can be used. Mostly it seems people call them reels. www.deepbluedive.com/diving/reels-smb-lift-bags.html#:~:text=Diving%20reels%20are%20usually%20used,and%20for%20general%20diver%20training.