The back story:
I asked this question because after Cincy2 paid Mr. Smith to voice his room with his new M3s, and he was left with a large suck out in the deep bass, and had to get the REL G1 Mk 2 subwoofers to correct the problem.
Please note that our AS forum owner (Mike) also owned Wilson Alexias, which he sold, but never answered my questions if they were installed by a WA dealer with proper WASP training.
Mike is now a Magico dealer, and paid Mr.Smith to voice the M3s in his new dealership.
In answer to your questions:
I think you have more than enough high quality power to drive the M3s.
10 weeks is more than enough time to break-in a pair of speakers.
It seems that unlike WA, Magico doesn't train their dealers on installation, if they did, they wouldn't need Mr.Smith.
Finally, IMO, a $75K speakers shouldn't need subwoofers.
jap - you seem very interested in my old Wilson Alexia story. Well, I have moved on from that nightmare and have forgotten it. But for your edification, here is a synopsis: I started my Alexia purchasing journey at my local dealers (the only Florida Wilson dealer at the time). Right from the beginning, it was an absolute nightmare to deal with them and at the 11th hour it was clear things were not going to get better. With the help of Debby Wilson, someone I consider a friend, I moved to an out of state dealer for my purchase. Although not focused on two channel audio, they were wonderful to deal with. Phone calls were returned. Questions were answered promptly. Color samples supplied. etc. I'm happy to report those other bad actors are gone.
The out of state dealer was not versed in the Alexia's and was far more skilled at installing video projectors, screens and surround sound processors than Alexia's according to "WASP". As for setup, yes he helped as best he could. When I mentioned some concerns about the sound, he helped me swap out the resistors But as for strictly following WASP, I was basically handed a print out with the instructions (see link below). I followed those instructions multiple times. I would liken "WASP" as compared to what Jim Smith does (with his two suitcases full of equipment) as something like comparing a bag of plain macaroni that you warm up in the microwave to a steak and lobster dinner at a fine restaurant. So your premise that Magico not having some acronym training program for their dealers places them at a disadvantage is incorrect. WASP is nothing more than a starting point approach which tries to find the spot in the room where reflection is at a minimum or as Wilson calls it, the Zone of Neutrality. I cannot speak for other dealers, but frankly, this is nothing more than basic speaker setup. It's akin to reading a book on driving a car and then thinking you can. It's a starting point. Nothing more. One only need look at what is missing from WASP to realize it's just a starting point. As Jim as mentioned, he has voiced many many previously "WASP"ed systems.
For those interested in reading more on "WASP", refer to page 9:
https://www.wilsonaudio.com/pdf/manuals/manual-sasha-wp.pdf
I hold no bad will or animosity toward Wilson Audio from my experience, in fact, quite the opposite. Wilson Audio and Debby in particular, tried very hard to make a bad situation (initially) as positive as possible in the end. But at the end of the day, the speakers didn't work out for me and I moved on.
As for the subs, the M3's work beautifully in my 18 1/2 x 25 room without subs. I find that subs are more about what they bring to midrange clarity than "thump, thump, thump" bass. In fact jap, you will note that Wilson Audio often uses Thors Hammer subs to achieve optimal results with their XLF's. Jock (the Professor) is using dual Magico Q-Sub 15's with his Raidho D5's in a SMALL room.
Therefore, subs should not be though of as a weakness in a speakers, but rather a compliment to a full range speaker to bring out the best in it's midrange.