This thread makes very interesting reading, I have just started using Zymol and Swissvax in the last year or so and fortunately one of the Directors of Zymol Europe lives very close and has passed on some great tips to me on how to use HD-Cleanse.
Firstly, HD Cleanse can be used by machine, the product does tend to dry out quickly though so I prefer hand application, but I know of several detailers in the UK who have been taught that machine application is possible.
Firstly, always make sure the applicator is damp, this makes the product work easier and the product goes further.
Next I always make sure I work the product on cool panels out of direct sunlight, do not let this product dry. Apply it in straight lines with your applicator and then remove the residue immediately. Work a small section at a time.
I will start working left to right and then when I have done the complete panel you can start a small section of that panel again, top to bottom. If that small section appears improved, you can do the whole panel again. Continue this until you notice no further improvement.
When the applicator is loaded with product, you can mist some water on the applicator and effectively reuse the residue on the applicator without going for new product.
I tend to do this on glass as HD Cleanse is a very good glass cleanser.
HD Cleanse is well worth it, a fantastic product which leaves an amazing finish. Dare I say it, in seeing alot of high end waxes being applied, I think that the HD Cleanse adds the majority of the look, perhaps 70% with the wax adding the final 30%.
I have successfully used HD Cleanse and topped with other waxes such as Victoria Concours (a fantastic budget option) and Swissvax Best of Show (for a bling finish).
Hope that helps.