Agree with all thats been said regarding barrel length, 26" is min for me. An 870 12 with 28" barrel balanced about right for me, so was thinking I could go down to 26" on a 20 ga. and preserve the balance.
For you Ithaca guys (always liked Ithaca's) are the featherwieght 16/20 ga on the same frame as the 12's? I do see them pretty cheap from time to time around these parts. As much as I like the idea of a nice double, the other things in this juncture of my life(mortgage, kids, etc.) always get in the way:) Definetly see battue's point on overall length, though. One of the things I liked about the Franchi 48, was its relatively low cost for a pretty highly regarded lighweight gun.
Battue-Thanks for the pics. Always enjoy your posts, you bring alot to this forum.