I've just upgraded to PKS2 and run through the manual. First let me add my thumbs up - this is a really worthwhile and welcome upgrade. The educational value of the preview is worth the upgrade price alone.
On reading the manual, however, I ran into a bit of "expert crossfire". The manual states, in the Inkjet Output Sharpeners section that:
"Changing the size will change the Resolution but this isn’t a problem! The actual resolution of the image in pixels/unit doesn’t matter for printing processes as long as it’s within a certain range. It’s far better to specify the dimensions and
let the ppi fall where it may."
Eric Chan, on the other hand, advises always sending output to the Epson 3800 at native input resolution, 360dpi (or 720) (
http://people.csail.mit.edu/ericchan/dp/Epson3800/faq.html#native_res), and NOT let the Epson driver resample. I've tested this myself on an A3 print, and although we're getting into the realm of hair-splitting, I have to say I tend to agree with him.
But since PKS does allow us, or even encourage us, to move into the realm of hair splitting, and PKS 2 now allows resizing, I'd be interested in any opinions on this.
Oh, one other thing - if I wanted to use PKS in tandem with Aperture, doing Capture Sharpening in PKS, should I set sharpening in RAW Fine Tuning to 0 ?