I think your split was fine. You certainly have more information about your hand and what you need, so I raised the ‘put 2 Queens on the same side’ option just as an alternative split that occurred to me, and might not have occurred to a viewer who hasn’t played much Quince.
I didn’t actually intend any criticism on the Flagstone tax - though I grant it doesn’t come across that way in the video! What I mean is that the Flagstone tax shouldn’t factor into Fivec’s decision making at all.
Glad you enjoyed the video, and appreciate the response!