Wayne's thread is informative, the short answer is don't worry. The difference between a cartridge that tracks at 2 and 3 grams is negligable. And that arm you are probably better off tracking at the high end. If the cartridge calls for a range between 2 and 3; track at 3. When the needle is firmly seated in the groove There will be less wear over all. How many times do you plan on playing each individual record? Also; how difficult are they to replace, that is the real question. I track my rare Blue Note jazz albums at 2.4 grams and they are holding up fine. If you have rare recordings then you need to examine the whole objective of the table/arm/cart system. Otherwize I wouldn't obcess.