I did not go back a read the whole tread so if someone has already sudjested these products oh well!
But since you're already an auto magic user GS-1 is the route I'd go, good shine decent longevity and fast. Can be used with a high-speed and a yellow blended wool pad or DA with a yellow foam pad on cars that aren't in bad shape.
Or you can try a car brite product called Crystal Shield its car Brite's answer to GS 1 and can be used in the same way same pads same machines.
And before all the paint correction specialists get their panties in a wad these are production type products not niche or high end products and designed to be cost-effective for a production type shop.
We used GS-1 for the heavier polish jobs, but never remembered it leaving any great beading attributes/longevity over BC-2. It surely didn't have as long of a working time, but longer than New Car Glaze (which usually didn't finish down well).
Carbrite's version of BC-2 is Crystal Shine. Same pink looking polish, just a little thinner than BC-2. I actually preferred BC-2. Carbrite makes great polish called Laser Brite. Worked very well with foam and wool. Laser Brite | Car Brite