New Cliffy Seawitch flap w/riveted bracket earns a [pass] stamp from me.
1. slow plunge (can I plunge to right top flipper): pass
2. hard plunge (can I plunge easily without thinking to top left flipper): pass
3. can I make orbit from lower left flipper: pass
4. can I make orbit from lower right flipper, and feed ball nicely to upper right flipper: pass
Buy with confidence. Oh heck, you already knew that.
When I quivered the product in my hand back and forth (comparing the two) I noticed that Cliffy's is slightly thicker and it didn't bow quite as much. This was a feature request that he added in. It's a good idea, and it works just fine with the added thickness. Note: I did not run 100 tests side by side to determine whether EVERYONE should upgrade to it for better performance. I'll let someone else run that set of tests.
When I measured them side by side, I think Cliffy's is 1/16" longer, which has an advantage of reaching the outer wall a bit sooner/better. Also, if someone (like me) wanted to change the flap angle a hair (fill and drill), the LONGER it is, the more options I have for angling the bracket more towards the top, which gives the ball a less steep angle to overcome.
So if I had unlimited resources and time, (and if Cliffy did too, haha) I'd almost ask for one same thickness, and about 1/4" longer so that all shots would have a smaller angle to battle when going around the curve.
Deep bow to Cliff for making yet *another* tiny run of a product that only a few people need, but that was sorely needed...
Some people are in this for the love of the hobby, and what they can contribute to it -- and right there -- there's more proof. I guess you either have it or you don't.