paa gee iss topic per fight kerna farz hai iss thread per at least once in a 6 months :D:P
as have mentioned this many many many times , we care our beloved cars like our kids and every weekend we give shampoo bath and wax coat to them like "Farz namaz" so in these cases we can do any experiment as we usually dont concern with longer protection and priority is best looks so in this case no matter sealnt over wax or wax over sealant, being car detailing addicts we all have right for such experiments , in my personal view sealnt over natural wax give masking, very good depth with high reflections ( less dust attraction ) but yes its true its life less compare to sealant over prep surface and top up with wax coat so bhai jan all upto ur preference
dont mingle waxes with sealants, waxes having comparatively less life and if aim is mask imperfections than very easy combo is mirror glaze #7 glazing in base and topup with mirror glaze #26 wax , as usually same brand products having better chemical bonding.
u can apply even ultimate wax over #7 glaze just give ipa wipe to surafce before wax and i tell u ultimate wax over #7 glaze give supper dupper looks ( azmayesh shart hai )
some people dont wish to correct paint ( compound /polish) for many reasons like they afraid to cut a layer of clear coat, they dont have experince for that or right tools , car is old and dont left enough paint layer on surface so in these cases detailers prefer masking imperfections and than sealed, in ur case ur car paint layer is also thin being car age thats reason usman bhai hesitated to give more cut to paint and instead of more deep cut he masked most of imperfections so its all depend upon ur moods and surface condition which a detailer take decision on spot.