I know this is an old thread, but I've been pondering this now for a long time....
So I've been using Cherry Foam in my lance for years now and it works great!!!
I let it dwell for a good 10mins and let rinse.
Thing is, then I've been re-applying the foam to wash the car with a wool mitt and also using a mix of cherry foam in a bucket with warm water.
Is it best to just use the foam to pre wash the car (the first dwell and rinse) and then use a quality Shampoo and the 2 bucket method???
Just wondered what you guys using the foam used for the hand wash!
Cheers.