Dan - Don't worry
I just thought i'd post up and agree with you about the VP range.
VWKev - I honestly don't know, i'll be completely honest and say I have not found the manufacturer of them yet, I haven't exactly spent a long time looking as i'm working on a few different ranges of products at the moment. I do need to have a good look though and stock them as they are a great pre-wash aid.
Just to say, I quite often use my lance with just shampoo in, if I don't have time to give it a good clean it's amazing how much a foam and a pressure rinse can get off a well protected car.
Chris