I really like Zabka in the show. And I like his style of physical performance. One of my frustrations with the series, even though I give all the martial artists who do this in the show praise for their athleticism, is it has moved very far away from the more grounded fight choreography and gotten very stunt team flashy. Which I get and accept but I really loved that first fight scene in the first episode with Johnny where he says he was using old school karate. It looked great but not super flashy. Not super gymnastics, but basic karate athleticism. I remember thinking "I miss seeing old school Chuck Norris style karate on screen". So I had hoped the show would go that direction. I am sure if they had, it wouldn't have done as well so probably for the best. But Zabka kind of continues to embody this aspect of the show for me
I agree they all look like they improved a lot. Devon and Kenny were also quite good