Take a look at these pages.
They have error graphs for lots of mounts. The original is in French but hopefully the links have translated the pages.
I think you will find that the tak has much smoother errors.
G11
http://translate.google.com/translat...langpair=fr|en
EM200
http://translate.google.com/translat...langpair=fr|en
The list of mounts tested in on this page
http://translate.google.com/translat...langpair=fr|en