i bought ultimate polish last 2 weeks and i could not remove swirl marks/scratches with hand application. Some more it dries so quick that i almost thought i marred my paint so bad that i stunned there for a few second while look at my paint.    It does remove some watermark. Scratch X did a better job for me by applying with hand to remove scratches

contaminant is easy to remove.. bird drop a bit hard if u leave it long...

and tree drop is the hardest? i wonder what product can remove this tree drop easily?

U bought autoglym from Eneos?

How much is the super resin polish and how was it?

shampoo wash will make tree sap worse. it will make small yellow dot become big and spread wider for the yellow dot. guess only tar remover will sort it out