I’ll echo this - on my 13’6 7wt I prefer the heavier side of the grain window (540 Skagit, 500ish scandi). I consider the 7wt more of a 7/8.Not sure if it will hold true throughout the T3H models but mine prefers (or I prefer) more grain than Scott suggests. I have a 12'8" 6wt. Scott recommends 400 scandi and 440 skagit. I like 450 scandi and 500 skagit (+ or - 15 grains).