Before I sent my camera in, I figured I could just do it myself, using the very detailed DIY on the site here. I did get the hot mirror out and put it all back together with no problem.
But then the focus issue reared its head. So I sent it in to the pros and they did a perfect job installing a 720nm and calibrated the focus.
Then I also noticed that they’d gone the extra step to replace a couple screws that had been missing in my camera for years. Great job.
It’s also worth mentioning that I had a great dialog via email with the guys and they answered all my questions about my particular niche (aerial photography of agriculture).
Turnaround time was less than a week. I’m now including a link to their site with every picture I post and spreading the word.