1.Sorry walang before images.
2. Logos will not be erased nor get affected. I tested first on an older cymbal since takot din ako. Nung ok, I used it in my newer pies
3. Parang groove juice to. Spray evenly, wait for at least 15-20 seconds. Wipe off with a clean towel. I used two microfiber cloth. One for wiping off and the other one for final buff
4. Price is 1.1k sa Lyric