I do concours fella and do read the labels , I just spray the one I use on a cloth and wipe it on , the gels and thick creams go in the tread and attract dust etc which looks a bit grim to the untrained eye , this is three week old treated tyres sat outside now in the rain ( no brake dust for obvious reasons ) ... the devils in the detailling
Megs is a bit like auto grim , the odd decent product but most are average