We’re thinking of getting a pair of fishing kayaks for use in Cholla Bay and in the SoCal lakes near our summer home. Ideally I’d like to trailer them back and forth a couple times a year, and they would probably spend equal time on either side. What problems am I going to have with this strategy? Are the Mexican border people going to want me to import them and pay 16%? Are the US people going to give me trouble on trips back?