my 2 cents is go with the guys opinion that has direct experience with the cam in the same application you are doing over the internet guy that does lots of dyno runs and saved charts from writing magazines articles.
engine dynos are for comparing tq/hp, it tells you almost nothing about about it's going to be to live with a combo daily driving it around on the street. the runs usually start at a higher rpm than you'll be driving around in at 1/4 throttle.
I get it, but since he's one of the only people doing back to back cam tests with the same engine I am working with (LY6), it's been one of the few relevant data points.
To be fair he absolutely touches upon your point in many of his videos and livestreams; most people want max HP/TQ numbers, but they don't typically load the dyno that low, aka cruising RPMs (1500-2500), but that you also have to account for the transmission; it will shift as soon as the driver request more power with the right foot.
All that being said, I'm basically down to the Cam Motion cam that
@Geotrash recommended or the Truck Norris. I actually stumbled upon Dave's YT video of his cam install when searching for Cam Motion videos on YT. I see what you mean by the chop, and it's subtle but prevalent with the factory exhaust. I don't think I'd mind something in that realm, or a little more pronounced.
I have seen that Texas Speed offers a VVT cam upgrade, and should probably reach out to them to see what that's all about.
The 5.3 to 6.0 is going to give me a upgrade no matter what cam I go with.
