As we are know, there is no clear cut answer to thus question    ( Too many variables, factors, etc)    But just like a bowling ball that you start a game with and can get a idea to either ball up or down, if you are had to figure, what surface Grit would be a good starting point to use?

Again, that's including all factors of length of pattern, amount of oil, etc ; My guess would be 2000.

I agree, but I was speaking in general is all no matter what; There are always going to be exceptions, but just in general is all I was pointing out.

 Depends what ball you're starting with to a degree, wouldn't it?

 Take two balls, drilled the same, with the same core, one with a "strong" cover, and one with a "weak" cover.  Put a 1000 grit surface on them.

 It will change the "strong" covered ball more than it will the "weak" covered one, doesn't it?

 Is it logical to think this? Is it like a linear progression?

 Take the numbers 9 and 10. Not that far apart, but square them, and you get 81 and 100.

 Cubed, you get 729 and 1000. If you change them at equal ratios, they get further apart.

 If you change the cover stocks at equal ratios, wouldn't the strong just get that much stronger?

 I don't really know, but that popped into my mind when I was reading this thread.

 Anybody know for sure?