That seems to be a little more erosion than I would expect but I'm used to the LT1 350 in my 93 Z28 and that engine uses a .050 gap. Does the smaller Toyota gap of .032 burn up the plugs that much faster? The rest of the plug looks awesome. I just pulled a plug out last weekend and the previous owner had put in platinum plugs with a huge gap(bigger than .050) and it still looked great. I'm not a fan of platinum plugs either.