Slab is sick and comp is hard (but also sick)

Comp kids are super good. They make all the climbs look like you can do them and then you touch them and you're like "What the helll????" - at least that's my experience half the time.
But you know what? Sometimes I have good climb days and I think... maybe I can keep up? So in today's video, I see just that. How would I fair with the skill I have now, if I was... 20 years younger? (I say this having witnessed some of these older teens flash 7's and 8's back to back. I guess by "Comp Kid", at least in this video, I'm talking about the 13-16 year olds) Yeah. I'm probably older than you think. ANYWAY -
I also graded the climbs for fun, but by no means am I a route setter or someone with the authority to accurately rate these climbs. They are my best guesses atm. I think I'm pretty decent at it up to V7 or so, but I'm curious... what do you think?