Hello Patrick! I see you beat me to SGL by a few months and you have a much better scope. Mine is the 8" dob and I have a Telrad. I bought used kit and the fellow tossed in books and other bits and pieces, one which is an atlas of sorts that shows where to put the telrad circle for Messier objects and other bright objects in the sky. The title of the booklet is "Finder Charts of Bright Telescopic objects" by Brent Watson. For M45 it shows a chart with Orion's belt int he lower left and the telrad circles about midway between Aldeberan and Algol in Perseus. I couldn't find the title at abebooks.com, but you might look around for it. I cannot yet attest to its usefulness because all I've looked at so far is the Moon. When (if) I ever get familiar enough with the gear to try the charts, I'll post (and probably, blog) about it. Clear skies, podnah!