any material that is harder than its opposing will cause damage. Microscopically, on a large scale.. Depends if your goliath or peter pan I guess. I dont know so much about leaving glass in the cue ball.. But damage will be done
G10 Is a harder material than standard PHENOLIC CUE BALLS.. G10 Is a Higher Grade Phenolic than standard Linen, or Canvas Phenolic.. Who is to say what the standard cue ball should be constructed from..
The fact of the matter is that G10 Balls have been developed, but at more than 3x the price tag just for the materials.. Who is going to pay $500 for a single set of balls. Not many, so the market is not there.. manufacturers opt not to produce a line for consumers.
Secondly, G10 Balls would last MUCH MUCH longer than standard phenolic, and would be less destructive(in my oppinion) to cloth (eliminating further sales)
Why? Well one of the hardest materials to cut is a diamond. Diamond cutter? this leads me to believe that the harder the material, the longer it will accept abuse.and Actually feeling g10 vs phenolic and cutting it.. Phenolic creates heat faster from friction.. At least when im shaping tips.
My 2 cents