@albertaduke did MUCH more to his mill than just the cam -- the cam was more aggressive and he changed other parts to handle the added power/stress, and he has the ability and access to a trusted local wrench.
I have neither the pockets, nor the trust in anyone local. Had I the funds, back in the day, I might have gone with Carpenter. My wife keeps joking when the Publisher's Clearing House Sweepstakes envelope comes in the mail, "Look, look look -- it says right here, I'm only 'one step away'!"
Until then, I'll just be a bit smug internally.
Lush himself only suggests that I'll see 9 hp gain, and touts the cams as resulting in a smoother running engine that will just feel like it's faster, and that's o.k. with me.