Thank you very much for your advice, psyprof1, I'll give them a spin.
In my setup, the listener will be facing a corner, the two adjacent walls will be the catheti and the maggies will have their radiading planes along the hypothenuse.
Thus each maggie will be placed at a roughly 45 degrees angle against the neigboring wall. This means that the reflected waves will meet bethween the speakers, most probably a bad thing, albeit intersecting at an angle and not frontally...
I have pretty harsh placement conditions but I suspect all I could lose will be the fare for shipping them back.
I agree, for their price they will leave room for a good sub.
But, if my memory serves me well, you are using your maggies without a sub, as I remember me mentioning the Sunfire sub to you on this forum.

Happy listening to you too.