63 to 66 A body tubular k frame questions who is everyone using??

Do you pick up a total of an inch. 1/2 " on each side with your k frame? The new hub would give me another .420 or approximately 3/8" more to each side than what I got now. Do you think I would pick up the 1" from the k frame I have now to your current k frame?
Do you think your k frame would have more adjustability to clearance the 26" tires than what I have now?

The .420 per side is a given, but to tell you exactly how much farther the HDK adds, I need more data, but from previous experience, the HDK is and can be adjusted narrower.

Measured with the hub at ride height, how far out is your hub with your current components?