I think so. I just got the GB720 today, and realized that there is no finish or plating on the buttons. It feels a bit more matte and rough than the GB350 button (but my GB350 tuner is Cosmo). I'm guessing all black plastic buttons are raw, and Gotoh just adds plating for Cosmo, Chrome, and Gold buttons. Weight with bushing, washer, and screw: GB720 is ~48g, and GB350 is ~40g. Not bad! As a side note, I replaced the Cosmo GB350 tuners on my Keith Elfin for black GB720s, since the rest of the hardware is black (it was driving my OCD senses nuts). The Cosmos will go on my SR5006, which has Cosmo bridge saddles as well. I'll post a pic tomorrow.