So I've probably waxed my board 10 times or so over the past 2 seasons. I waxed mine the other day for this season and did it the same way I always do (scrape off old wax, wipe down, wax, let sit for 30 min, scrape and buff). Usually I can get 4 or 5 trips out of a wax job before I start to see real wear. I went riding yesterday and this is what multiple parts of my base looked like afterward:
To me that doesn't look like wear. It looks like you didn't scrape it all off...
After waxing.. scape it alll off.. You should know when to wax by seeing whitish color on your base, Sorta like it is dry.
IMO it doesn't look dry or worn to me. I may be mistaking but it looks like you have spots you did not completly scape off.
also, just a small detail but if you want to clean your base completely before waxing, you should use a wax remover to get all the old stuff out. One Ball Jay makes some nice citrus stuff from orange oil.