Spent a few hours messing around with it today. Here's my results so far.

The chanter in question is a Gael 474, the reed an Abbedour medium. Drone reeds are Husk cane.

The drones are perfect pitch right at the hempline, pushing them down about an inch and a half gets them to 478, normal pitch.

I wrapped TONS of hemp around the reed an seated it out quite a bit until the high A was right about 440, give or take a few hertz. I've threaded the reed seat, so adjustment isn't too much of a problem. Semed a tad unstable, so I didn't fine tune it just yet. Good thing. The low A was somewhere in the ballpark, nothing a little tape couldn't fix. The enitire right hand was passable, showed promise of being able to be tweaked a bit. Then I clamped down my right hand and let fly with an E. Jumpin' Jehosophat! Who let the dying cow in my house!?

I'm not really willing to carve up the chanter, so maybe my experimentation is at an end for now. I'm off to Dunsire forums to glean more info about reed choices for these chanters. I just used what I normally play in my Dunbar Elite.