I know this is a longshot... I have the Stauns "heavy duty" model (15-55psi). And have since discovered that my tires work best at 10psi. So looking to see if there is anyone that has the "light duty" (0-10psi) or the "standard" (6-30psi) model that would prefer to have my heavy duty models? Even trade. Otherwise I'll be buying new ones and putting the old ones up for sale.