Hi Case00,
I think you can ditch him. I didn't have him with me when we located and saved Vi - I just wanted to explore the city before I did anything with Myles. I picked him up later and he's been hanging in the group for a while now and he doesn't appear to "give you any quests" while he is actually with the group.
Just stop and talk to him now and then and see if he has something new to offer.
Wyv
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