From what I've been told, it isn't really necessary to use a lot of surface to carve a spot during team. The guys our group has talked with say there is already a natural hook spot to throw to on that pattern.
In minors, on the other hand, we've been told that it's very important to use surface to the right to try to open things up. Obviously, as that pattern is longer and needs to hold up for six games rather than three, that all makes perfect sense.
That being said, we've taken different approaches to surface over the years. Generally speaking, when trying to carve, I may put a light 500 or a steady 1000 grit on a ball. You always have to be careful with going too gritty as you don't want to completely blow the heads up! Mos of the time, we will throw 500-1000 during practice and then use balls in the 1000-3000 range to actually start trying to knock them down.
The interesting thing this year is that when I've watched the highlights of the honor scores and leaders, a lot of the balls have looked kind of shiny. It's hard to tell if they actually are or they just appear that way due to the lighting. My group bowls a week from Saturday and Sunday, so I guess we'll find out!