with the flats i just eyeballed it, using the histogram, its the easyest way to run the show with the KISS theory.
Im unsure what you mean by the hystersis (i associate that with PHD guiding). Im glad that the mpcc and 2" mod works well! I just fitted my 3" FT focuser last night finally had enough of the skywatcher gig... the 3" focuser is huge and the baseplate only just misses the spidervane thumb screw by about 2-3mm
hooray! The only downer part, is i think im going to have to shorten the tube by about 20mm...