Paul, thanks for the review. I was interested to hear your comments re needing to change out the focuser - I'm assuming you are referring to your NiteCrawler? How did you determine the focuser was flexing when you also have issues with the focuser mounting plate?
The youtube video for the Nitecrawler has a demonstration of it holding position with a 16lb load. You must have a heavy camera!
https://www.youtube.com/watch?v=azcv1b6u3jo