I have a 2004 Forester with the original Yokohama Geolander tires. I always keep about 32 lbs of pressure in each tire. Today I noticed that the door plate recommends 29F 28B (light load) and 29F 36B (heavy load). Which is correct? The auto repair shops inflate the tires at 32-34 lbs. I live in Western Washington in fairly cool wet weather most of the year. Thanks.