They have gone to a new design in recent years with the Simmons scopes... different erector arrangement and turret system... "true-zero" I think they call it. From what I've read, they've been well received and are working great. The older Aetecs had some pretty decent glass in them... don't know if they're still using that glass, but it's on par with some scopes in the 500 dollar range.
Good luck with your scopes. They'll most likely serve you well.
here's a link you might be interested in... http://www.simmonsoptics.com/resourc...chnologies.cfm