Thank you for all the kind words!
John - I think the Werkstatt products are great. As for LSP, I only have the AJ-T. The Prime/AJ-T is a great combo, very clear and incredible for flake. I still use the Prime as a precleaner and base, but the new Z5Pro gave me greater wetness and depth, while still giving great clarity for the metallic. Maybe Carnuba Jett would be closer, but I dont have it to try.
AJ-T is very easy to use, but I find it a little heat sensitive. If the surface is hot or in partial sun, I have a bit a of a streaking issue. Out of the sun, cool surface - no problem. Durability is good, but not near Zaino in my experience. My biggest concern ( and believe me, its probably JUST me being anal) is that with the spray on/work in sealants like AJ-T, OCW, etc. Im never really sure about total and complete coverage. For me on my personal cars, I like to be able to coat the car and as it hazes be able to see if I missed anywhere.
I have been a long time Zaino user, but with the latest revisions my old favorites, I find them perfectly suited to my needs and wants in LSPs. For friends and customer cars, the Werkstatt products get the same WOW as Zaino. They look good, easy and quick to use, and more economical.
I have also found Werkstatt and Zaino to work very, very well together. Prime works well under Z2 & Z5; it adds protection/slickness and allows you to apply thin Z layers quickly. Z6 works well as a QD with AJ-T and Z8 turns the look up a notch over it.