I tried Don! But Scott just didn't convince me there Don! Maybe he should'a embellished a lil!

Hoist! 
Howie, Scott was just being modest. He's good that way. But I'll tell you the rest of the story. After all, I've got them on both bikes so I must know
how to make it up what it is.
First off those vertial ball milled design elements in the pushrod tubes cause enhanced turublating vortices for the air flow entering the intake. In case you're wondering, yes, this is a good thing. The extra spin tickles the intake and throttle body. And an intake and throttle body that are tickled can't be bad. This TTE (turbulator tickling effect) accounts for 20 to 25 extra hp.
More important to your current situation, however, are the lifter blocks. Once again it's all in the ball milled design and their matching ball milled o-ring. That special ball milled o-ring has lifter reanimating super powers built in to it. Wirelessly. Your lifter would have survived another 100,000 miles with those o-rings. But they only work with these lifter blocks.
On top of all that; it all just looks good.