avabob,
Your golf ball/greens analogy would work, if every golf ball that rolled across the green changed the surface of the green in some way. The fact is it doesn't, so the analogy is moot. Every ball thrown, whether at 4000 grit, 500 grit, or 80 grit changes the oil pattern. Every ball thrown, whether it's resin, particle, urethane or rubber, changes the oil pattern. After 10-15 mins of practice, any oil pattern will be different then when it started, in some way. Whether it's oil getting sucked into the new balls, whether it's oil evaporating under the TV lights, whether it's oil getting pushed down from plastic or urethane balls being thrown, the pattern will change. Sorry, I don't see your point of detracting from the physical intgrety of the game. What do you mean by that? Is it because no one else could play like Valenta was playing? If so, then again I ask, why wasn't anyone complaining when Robert Smith did this during his prime? I'm not trying to be an @ss, I really don't get your point.