So I saw on the facebook list that there was a list of things that recent converts miss from PT GUI. One that I really miss is the automatic vignette correction that PT GUI and Huggin does. I know that the adobe lens profile has the advantage of also correcting chromatic but in a gigapixel image if you don't have at least vignette corrected it looks pretty bad. I have a bunch of images from rented lenses that I can't make a new profile for and I no longer have the lens, most of the time it would be easier if I could just run the calibration w/ the images I have. Right now I am stitching in Autopano and going to pt gui to calibrate vignette and render.