Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

Folks often forget to flush the heater, or forget to open the "hot valve" while flushing, to blast the crap outta there too .
I used the heater hose closest to the front of the water pump and opened the valve (I think) until coolant came out the bottom rad hose. I use the yellow stuff and it looked a bit I’ll coming out. I ran it until clear. I’ll repeat before final fill. Waiting on connectors for fans. I have to pull the rad to do so….its only been mounted… never filled. (That’s what she……)

Probably Monday at this point.

Very excited to see if there is an improvement.