Just got home from the shop, spent the last 6-7 hours doing a full detail on my truck. Finally found a product (A-Maz) that worked for getting the hard water spots off the windows, bought the truck used in 05 with the heavy hard water spots already on the glass. Tried several products over the years all with very poor results until now, the windows are spotless and look like new. For wax I've been using the Meguiar's NXT Tech 2.0 just like on the Busa, not really a wax but more of a polymer sealant. This stuff makes pretty quick work for shining an entire truck, man I remember using paste waxes back in the 70's and 80's and you would be there all day long trying to get that crap off. Always did like driving or riding a clean sparkling vehicle.