Hrodulf
I understand your doubts about sending your headphones abroad, we are looking into getting an agent in US to do the measuring.
 
It is good that you mentioned what your headphones are, we already have had a few requests for KNS8400, so we'll surely make an effort to acquire a few samples to measure them.
 
As for average curves - we usually generate them by measuring a number of samples from the same model, to account for FR spec spread. You can send in a curve, however we can't be sure how accurate it is. The problem is that currently there are no set standards for measuring headphone FR and everyone does it according to their understanding. I can send you message once we get a KNS8400 average curve out.

I truly appreciate the response and support.  I really want to try this software and have already downloaded the demo.  I'll continue to monitor the website to see when my headphones make the list!

I tried a couple times to register to get the trial, put my email in the box and clicked the button, no response.
Still waiting for a download link.

I did it for both trials and the reply was almost immediate. Do you have another email address you can try? or you might try adding sonarworks.com to your safe contacts list.

Despite our less-than-malicious intentions, many e-mail clients tend to put the automated responses in spam or "Promotions" folder. Check there or PM me your address so I can check if it's added and get you the right links.

Just an update. 
I ordered the mic + trial promo (software on a flash drive) Sat. night & it arrived from Lativa this morning.
Great service, thanks.

I measured again & the results were quite a bit different the with the ARC mic, especially what was corrected in the high end.
I find this so much nicer than ARC for my tastes. I'll be this using it instead of ARC which I think does something strange to the sound & sound field.

I ordered the Reference 2.2 + mic package and it should arrive tomorrow. I can't wait to get started and compare it with ARC 1 & 2. I appreciate your comments because I really want to replace that ARC sound with something more palatable and accurate.
 
It does look like the measurement process is completely different than the ARC process and hoping for better results. I agree that the Sonarworks folks are Great to deal with and the Customer service is Top Notch!

Well, This must be some pretty good stuff as US Customs has had my package for around 10 hr's now and still have not cleared it. Is it possible that they have a DAW setup there and want to keep the room correction software for themselves??? 

That's a drag.
Hope it gets sorted out soon without any glitches.

Yeah, that's the way things work sometimes. Tried several times today to contact the agent but with no luck. I have the case number so I will be a little more persistent tomorrow. I might add that Sonarworks also has been in contact with them so I suspect it will probably get corrected soon.
 
Sonarworks had shipped it Fedex Priority and I watched it move from country to country to country and then it hit the states and everything just stopped. A single small package, that wasn't even containerized, could cause such a stir with US Customs... End of rant, just a little disappointed right now.

Yeah, there was a bit of a snag with customs. It shows that now the package is in transit and on its way to you. Strange that they got spooked by a simple mic.