Well, it depends on your view point and just how bad a crud ring you get.
I do pressure testing and the difference in pressure between 777 and BH allows me to go where I can not safely go with 777; beyond that I get the worst case of crud ring I have ever seen and nothing seems to help much, I know mike does not have that problem he is also over 5,000 ft higher compared to see level and not sitting down wind of a very large lake with summer temperature that averages in the 90's and equally high humidity.
I believe we each have to make our choices according not only to what we know but also to accommodate our location and our goals. Lee
I do pressure testing and the difference in pressure between 777 and BH allows me to go where I can not safely go with 777; beyond that I get the worst case of crud ring I have ever seen and nothing seems to help much, I know mike does not have that problem he is also over 5,000 ft higher compared to see level and not sitting down wind of a very large lake with summer temperature that averages in the 90's and equally high humidity.
I believe we each have to make our choices according not only to what we know but also to accommodate our location and our goals. Lee