I like how Chase is developing his BH, working towards a middle-of-the-road style. His short game and reading of spin have improved noticeably. Once his BH gets up to speed and he gets past the issue of transitioning between FH and BH, which calls for different footwork from the FH-oriented style, he'll be a beast.
OTOH, I would like to see Brian work more on skills than tactics. You're young and could use more power and movement in your shots. Try to step around more, especially in the long rallies. Try out new, risky "maneuvers". Safe play can come later. Control-oriented style doesn't exert enough pressure on the opponent and will hit a bottleneck sooner or later.