Thank the stars for the oddball poker in this episode! It's one of the saving graces. Perhaps the early DeNiro movie "Bang the Drum Slowly" drew from this source for its TEGWAR (The Exciting Game Without Any Rules). In that one it was used for hustling and amusement. Here there seems to be some honor in the apparently arbitrary application. Bart actually wins a hand early and both Beau and Bart do well late.
One of the characteristics of the series is how easily the Mavericks are taken in by fetching ladies. Try as they might they often find themselves at a disadvantage. Men with such self-serving goals are usually thwarted. But the fillies often ride away with the money. This is one of the aspects that date the series. And endear it to many viewers. Chivalry in the Wild West. It is who they are but not for all tastes in its expression. However here she ultimately saves Bart's life and turns into an honest entrepreneur. Nice twist.
The Maverick guys sometimes appear in cameos of episodes featuring another. This works for me. It adds to the cohesiveness of the family whole. Bringing in Beau for the endgame is funny. And it gives them a chance for a great Pappy reflection.