Quote Originally Posted by hafejd30 View Post
I vote Sightron as well. I owned 3 vortex and 4 Sightron. My Viper PST was the most expensive. I now own the 4 Sightron and 0 Vortex. "But vortex have a great warranty". I've never needed to use the Sightron warranty
I have a Sightron SIII and a Vortex Viper HST. I've used Sightrons warranty, have not used Vortex warranty.

And I would agree, the HST would be a better comparison to the stac. I don't see anything that says the Sightron has ED glass, the vortex HST does, it also has a zero stop. If the HST would also be a consideration I would chose it over the Sightron.