Beautiful bow Charlie.
Yes, what limb profile? I have 66in bows from HH and N Mist with deflexed/string follow limb profiles that are fine to my 29in draw but have found very few straight or reflexed 66in ASLs that wanted to go that far smoothly. Miller built my string follow Old Tom at 67in and it is perfect.
Surprisingly I remember helping set up a 64 Redman that I would be happy shooting, although it was a low draw weight, so the design and or limb core must have something to do with it.