I found the sweet spot but it's 5ft off the floor

Magfan, thanks for the Toe explanation. The outer toes are further away from the wall.

I'm not sure if I need to start another thread but do you have any experience on how to fix mylar that is pleated?
I discovered a couple of days ago that when I played music with a boomier base one of my speakers was vibrating in the upper woofer area. I never noticed this before, I'm guessing because I used these maggies exclusively for jazz and classical.
I did some research and found that some owners had experienced similarly and discovered the root cause was the separation of the thin wire from the Mylar. Thinking this was the problem I proceeded to purchase the 3M adhesive from Magnaplan. When I removed the sock from the speaker I found the wires to be intact and well bonded to the mylar. Instead I found the mylar pleated at the top left corner of the frame. It looks like the film had not been stretched out properly during manufacturing. It's all bunched up in this area with an approximate coverage of 10 square inches. I confirmed that the cracking/buzzing/distorted sound was coming from the pleated area by playing the track that I originally discovered it with.
I opted not to touch it further but rather take photos and submit them to Magnaplan@service.com with a report of my findings.
The warrantee expired in 08' but I'm hoping that they will recognize this to be a workmanship issue and make me whole. or at the very least, offer a quick fix.
I emailed my report and pics yesterday. I'll call on Thursday to see if they have logged my complaint and determine if they have made a disposition.
I tried pasting some pics of the pleats but it wont allow me to. Is there a way I can add photos to this site? I want to alert Maggie owners that such defect can occur and will most definitely affect sound. I never got an opportunity to audition these in the store. They were back-ordered and my decision to buy was based on an audition of a floor model. I probably used them for about 100 hours and they were packed in their original packaging for almost 4 years until I decided to set them up last weekend.

You are past my direct knowledge.
HOWEVER, I'd recommend posting at Audio Asylum....in the Planar section.
Post a picture, too.

Magnepan is frequently knocked for quality issues. Given the bang/buck ratio, people tend to put up with it. I woudn't, and if I had the chance to speak with Wendel, quality would be my #1 concern. I've had extensive quality training and bring some real experience to the table. I'd work for a couple months for a pair of 20.1s, and help with all quality issues.

Magnepan, I'm told, changed glues sometime back. They formerly used 3M77 and an overcoat. The DIY crowd likes Gorilla Glue!

Post back with results of your querry to Magnepan. You can call 'em, too, and ask to speak with Wendel. He's a great guy to deal with and the 'go to' man.

Thanks for the advice. I'll call Wendel. We probably have a great deal in common in terms of quality fundamentals as I have been in the quality/technical field for 25 years.

I'll keep you posted....

I do not understand your problem. When I sit in my seat my ears are between 4' & 5' from the floor. The sweet spot is never at floor level because the speaker drivers are not horizontal along to the floor but vertical from floor to ceiling except center speakers for HT.

When I'm sitting in my listening chair my ears are 3.6 feet from the floor. In my case the music is much more dynamic and engaging at 5 feet plus.
By manipulating the speaker placement in my room, I was able to lower the sweet spot somewhat. It's much better now thanks to feedback I received from this thread.