Ahhh Robin i had this written down somewhere with which way to turn the Superwedge knobs etc but i cant find my notes, always seem to forget but when im at the scope it all comes back . Its all about trail and error , i use a stopwatch which gives me a idea on how much to adjust etc.The difficulty with the superwedge Alt adjustments is the freeplay when changing directions , this is critical for the fine tweaking needed.
This a good link for dift aligning froma SH perspective
http://members.iinet.net.au/~rog1/astro/info/polar/