Just got my order from FK1, which included #146, back order on 1016 shampoo, and some SSP. The later (ssp) was to be used with QEW, and for me to see if there was any advantage over the current qd I spike QEW with vs. having to go purchase Optimum Waterless wash.
#146 is a good cleaner, that leaves a very nice shine which is deep and glossy. I pressed the issue with its cleaning ability by cleaning my SUV that had been through some rain and used a lot of MF towels. It handled the grime very easily. Other QD's I have used have been the CG line, Adams, PB, and this one definitly cleans. Bottle says it could remove light oxidation. I have none, so I cannot confirm this. I used it on my windows and for me, it was like using OCW on glass....need to buff a bit. Certainly not as easy on glass as #425, which I have found easily removes finger prints. I found no streak issues, but my car has been properly maintained with other products in the FK1 line, so maybe that has something to do with it. Each product builds, compliments each other.
If I were to compare it to the CG Synthetic or DS w/nuba, #146 wins hands down as far as cleaning ability and the gloss/shine factor. Follow up with some #425 and you have yourself one nice looking auto.
CG DSw/nuba just streaks to much for me, even when cut with RO water.
CG Sythn QD is not far behind #146, but lacks cleaning power.
Now, I cleaned my other car using QEW and put two capfuls of SSP in both buckets.
In comparison, I have dumped CG Synthetic and Adams into some QEW and achieved very nice results. Enough to keep me content and not go out and by all the newer waterless washes out there.
SSP advantage was that it seemed to make the car look like i just #425
it, but all I did was dry it after washing it. It also seemed to add a bit of slickness while washing the car and made the mitt glide on the surface with less friction if you will.
I hope that FK1 re-introduces SSP, because I think it has a place in any enthusiast, pro-detailer arsenal, especially when it comes to Waterless washes like QEW which I think is awesome, but now can benifit and get a boost with a product like SSP.
My next test with SSP will be to use it after washing a car with my foam gun, and then spraying it on the vehicle while wet, and drying. Another technique I use with a QD as I know you may as well.
Just my experience, take it for what its worth and have fun detailing.