I have a Mk3 Octavia in Bright Silver metallic.  Not had it too long but a few months ago I thought I'd try Sonax Brilliant shine detailer.  Got it at a good price on ebay.  After using it I was very impressed and have used it on a couple of occasions and was impressed by the ease of application and the shine.  Just recently I've been talking to a guy up my street who has a nice silver metallic Merc.  We got on talking about polishes and waxes etc and he told me that he uses Poor Boys World red Natty's Paste wax on his Merc.  I was very impressed with the depth of shine and he offered me to try some on my Octavia.  So, I did the bonnet with it and I have to say that was mighty impressed with it.  I'd say that it gave a slightly deeper shine than the Sonax.  So, I fancy buying a tub of the Natty's wax.  My question is, can I us the Sonax and the Natty's wax together ie. one on top of the other or is that just overkill.  Would it be best to just stick with one or the other ? 

Yeah sure you can use the sonax after you have finished washing your car to add gloss to the wax and add protection