Pretty cool testing.
I think he should have used a more common/popular carb. If it wasn't for the Ghost 212, the pz22 would never be part of the conversation. Who would build a 212, then order a pz22 for it? Very few.
Would have been nice if he included the common intake that comes with the VM22.
I can't recall him ever using a Nibbi which is a fairly popular carb. A flanged 24mm Nibbi, VM22, or Mikuni VM22 would have been better for this testing in my opinion. All are more popular than the pz22.