I find it easier to kite Dimorph to control my Taming area. In the past, a well placed bola would easily drop them to be tranq'd. Lately my bola is bugged and doesn't work, so I had to improvise. When you hop off your mount with a Dimorph aggro'd, it will circle your mount almost too quickly to land a tranq arrow. My solution? Have your Argy/Ptera on 'Follow' and run in a straight line for a moment, turn 180* and line up your shot, the Dimorph will chase your tame, and place itself perfectly for headshots.
When taming you don’t want to tame the ones in a group.They are pretty easy tames if you don’t attack em in packs one tranc to the head and it’s out.It is neutral meaning it will only attack if you attack it.After you take a pack of these guys they can wine out slot of things.