Hi Tony,
PEMPro is intuitive to use, but does take some time to get things set up. Tweaking the PE curve I found was trial and error, though I'm getting rather proficient at it. I could probably squeeze a little more from the Titan mount. I thought about going the Titan 50 and changing the gear ratio, but this will not improve the tracking accuracy. The '50 simply adds more torque. However, if you power the standard Titan with 18v (instead of 12v) you'll find you have plenty of torque (I certainly do anyway). I did some screen dumps of before and after PE results, but left them on the computer in the observatory (which is 160km away from where I am now). I can PM you with them when I get a chance. Your AP mount comes with PEMPro. I highly recommend you use it.
Yes. The image is clipped, somewhat on purpose to bring out the faint stars. I was checking for elongation and other optical anomalies. Seriously, I spent less than two minutes stretching the image. If I get time, I'll process the image again. Also, I processed the image on a laptop which has not been calibrated - this wouldn't help.
Hmmm. The STL11K.... I'm having doubts about this camera. I'm a little disappointed by its sensitivity around the 650nm. I think I should have spent the extra $5k or more and get the STL6303. I’ll wait until I get hold of the FSQ-106ED in early April, before I do something about it. Are you looking to buy?
I see the C2 offer is on again. Check atscope website.