OK, I got a chance to test out the SIP versus my old formula of Hyper Compound. Below are pics from two different cars. Since I got two Menzerna polishes I had two of the low profile orange pads to keep things as equal as possible. I did both test areas the same, four passes in perpendicular directions slowly with moderate pressure on the PC at speed 6, and then two passes a little faster with only the machines weight. As expected, the SIP came out hands down the winner. It took out virtually 95% of the swirling and all that remained were a few random straight scratches. And the finish almost looks good enough to wax, but as you can see from the pics it's a bit duller than the middle section where the tape was so a pass with Micro Polish will be in order. The Hyper Compound side noticably dulled down the swirls, but they were still readily apparent. And as you may see in the pics from the black car, the HC left little swirlies in the paint. This tells me that the HC needed to be worked longer, which doesn't surprise me since I was trying to keep the test the same. But even if I did work it longer and came out with similar results to the SIP, that still means it would take a whole lot longer to get the results. But having used the HC prior, I know a little added work time wouldn't have made much difference.
Now for the pics:
These red ones are from a '68 Cutlass, unknown repaint.
Not a great pic, but the spot where the flash is at is the tape area.
This one focuses on the HC side of the panel. I didn't really see the marring left by this compound from not breaking down, but in the picture it looks like maybe you can see it.
Again, this red was hard to get good pics of, but what you see here is basically what I saw in person, a nearly flawless finish on the SIP side
These next pics are from a 2003 Pontiac Bonneville, black (actually a very dark brown). Again, the HC is on the left of the tape mark, SIP on the right.
Focusing on the HC side here. You can see here the little marks I think many refer to as "hooks"?
And here is a shot toward the SIP side, much cleaner.
Again, I want to reiterate this was the old formula of Hyper Compound. I've read the new stuff is quite a bit more potent, so maybe the new stuff will yield more close results to the SIP.
Now for the pics:
These red ones are from a '68 Cutlass, unknown repaint.
Not a great pic, but the spot where the flash is at is the tape area.

This one focuses on the HC side of the panel. I didn't really see the marring left by this compound from not breaking down, but in the picture it looks like maybe you can see it.

Again, this red was hard to get good pics of, but what you see here is basically what I saw in person, a nearly flawless finish on the SIP side

These next pics are from a 2003 Pontiac Bonneville, black (actually a very dark brown). Again, the HC is on the left of the tape mark, SIP on the right.

Focusing on the HC side here. You can see here the little marks I think many refer to as "hooks"?

And here is a shot toward the SIP side, much cleaner.

Again, I want to reiterate this was the old formula of Hyper Compound. I've read the new stuff is quite a bit more potent, so maybe the new stuff will yield more close results to the SIP.