I think the most important thing is good communication with your porter. You have to tell him what you want to accomplish and he needs to know what you have for a combination. I use Jeff exclusively, and I think my performance speaks for itself with the small Icky 440-1's. I started with just bowls and gasket matching and had him tweak on them every couple years as funds were available till I got to max potential (we are at max aren't we Jeff?). Every step was reasonably priced and showed results.