Got about a 2000# boat.....tires are ST215 75R14.....what air pressure would you use.....the tire says 50# max cold pressure....I used to run 40#-45#.....the tire dealer said to run 35#.....said any more and the tire would wear out in the middle.....35# seems low to me.....what do you guys do.....also learned something new.....trailor tires are only good for 65 MPH....that got my attention.....

