The Super Polaris is an excellent choice for refractors to about four inches and SCTs to 8 inches. The setting circles work very well.

The Losmandy line also has setting circles, g8, G11, but not the Titan. The AP900s and AP1200s still have setting circles; the Mach 1 does not.

For cost effectiveness it's hard to beat teh Super Polaris.

regards
Greg N