Hi there superchargedmorph,
I to use Autoglym, and have found the same problem, but there is another product from a similar company Auto Smart, there polish is good, infact it might be better that the resin polish of Autoglym. It give a very smooth, and haze free. Its not as hard a finish as the finishing glaze and maybe bdoesn't last as long but its good and doesn't leave a white dust.
Cheers CBlexus