I know nearly everyone likes the electrics now, but I'm still partial to the mechanicals. There are some drawbacks to the electrics, in my opinion. One being in the event of a bad situation, the electric will keep pumping fuel like a fire hose, which can cause a nasty situation to become very bad, very quickly. The only way to overcome that is some sort of inertia switch, like new cars have. Another is just the complication of switches and relays and more wiring to go bad or fail. And since electrics are typically located near the rear, that leaves a lot of line and hose connections between the pump and carb that can spray fuel in the event of a rupture. A mechanical only has the short distance from the bottom of the block to the carb.
I know there's a horsepower limit as to what a mechanical can feed, but you and I aren't there yet. My Edelbrock pump reliably feeds 500hp with no issues, and there are better ones that will feed up to 600+hp. I keep considering an electric for the Mustang, but I just haven't had a need to or see a reason to when the mechanical has been working without issues for so many years. Even the over-the-counter Carters have served me well on stockish engines for many many years.
That was a bummer that your pump failed at Beaver. Hopefully we'll both have the bugs worked out next year. Hope to see you and your boy there again.