I agree, as far as this: yes, definitely try to upgrade to GS EPs; they are much better.
But I disagree that the S-500s are the bottom of the line in Ploessls. Geoff, you obviously haven't had the displeasure of looking through one of the Super Ploessls that come with the Dork Smith 4.5" Newtonian.
Compared to them the S. 500s are a work of art!
