ok, so i got the academy, and while its actually in better shape than i thought it would be from the ebay photos, its not not really a good enough match for the heresys. i wasnt expecting it to be perfect, and its certainly not a bad sounding speaker for a 2 way, i guess it's just really suffering from the lack of a mid horn compared to the heresy IIs, its not a good enough tone match espicially in midrange clarity, its more mellow/laid-back and slightly less dynamic and detailed, it just sounds kind of "meh", compared to the heresy's "wow". (it also seems to be a little more fatiguing than the heresys)
Also, for some reason, it seems to Negativly affect the imaging of the system quite a bit in some ways, including significantly narrowing the front soundstage. With everyone always telling me how the center is the most important speaker in a HT, i was expecting Any center to be a big improvement to imaging even if it wasnt a perfect match. But (discounting maybe a little improvement in soundstage depth) overall the imaging seems to be a bit worse with the center than without it.
so bottom line is that at the moment, in both sound quality and imaging, i think my system sounds a fair bit better with the center off (just the heresys running in stereo) than with the center on. So I'm gonna keep playing with the positioning and levels, but it's starting to look likely that i'll try to re-sell it. Anyone looking for an Academy in eastern Connecticut?