Maybe I am missing something here but there is a significant difference between "5 grains per inch" and "5 grains per pound". The IBO "standard" that everyone has been going by was 5 grains per pound of draw weight which it sounds like everyone has been discussing here.

However, High Country and their carbon arrows are touting "5 grains per inch" in their advertising slogans. 5 grains per inch of arrow length is significantly less than 5 grains per pound of arrow weight. A 30 inch shaft would weigh 150 grains. Throw in a 100 grain point, some four inch vanes, insert, nock, etc... would be less than 350 grains.

Take a good look at that "High Grade Carbon" advertisement and look at their total arrow weights in comparison to some of the other carbons on the market and you will see what I am referring to.