If you do try towing the flag (it really isn't a big deal, I just hold the reel to the side and back), don't ever attach it to you. Just hold the reel, that way if someone/something snags it (think boater/boat/jet ski) you can just let go instead of being along for the ride.
Respectfully,
James
For the first time ever I saw a youtube video where the guy was "towing" a buoy.
Ok I understand more how it can be done, and not attaching it to yourself makes a lot of good sense
I can understand that on a shallow dive, with great visibility, it would not be too much of a problem, let's say down to around 10m. Diving down beyond that, especially in poor visibility, beyond 10m, I could imagine that it would present more of a risk than an advantage... We mostly dive cold lakes, so we tend to dive deep quite often. Visibility can be rough here, to the point that you have to hold on to your buddy physically in order to avoid losing them.
Fast forward to 55 seconds and watch from there, it's easy to understand why I talked about visibility.