So I want a J-45

[Edgeguy]

Not trying to high jack this thread, but what is the difference between a J-45 and a Advanced Jumbo?

[Mr. Bill]

J45 has the shorter(24&3/4")scale.
Advanced Jumbo has the x bracing "advanced" toward the sound hole.
Amazingly they sound quite different. Any others I missed?

[steverok]

AJ is long-scale with rosewood B/S, and pre-war bracing, J-45 is short-scale with mahogany B/S, and different bracing.

J-45s are so uncool, how could you want one ?

[3rd_harmonic]

I have a year 2000 Montana J-45. I'm happy with it most of the time. Kinda like a woman though. Moody sometimes. But it's my "desert island and you can have ony one" guitar.

[Bluelew]

This looks like a nice one....
http://www.elderly.com/vintage/items/20U-11725.htm