Guys thanks for all the feedback. GAD, your bluesbird comparison is awsome, just what i was looking for. The thing i like the best about my 2000 Bird (westerly) is the neck. That neck is the most comfortable one I've ever played! I had a Blues 90 for a while, but I finally sold it due to the chunky neck. I do have another electric with a 1 5/8 neck, a Cort Matt Guitar Murphy, which is a great gigging guitar, but I feel like the strings are just a mite too close together. Anyhow I just found out the M-75 in question is pretty dinged up, so I'll probably keep my current bird. I did do some mods on it - i replaced the stock SH-1's with Rose California Alnico II's. These give it a somewhat fatter, silkier tone.
The M-75 with the Guild pickups, master volume and phase switch sounded very interesting however.