The locking turret thing is a real advantage. I've got an STAC 3-16 and optically it's great and it tracks perfectly and the illumination is great but the windage turret is pretty easy to bump if you're using it in the field. I haven't run out of erector but it's pretty rare for me to shoot past 1,200 yards and with 20moa bases, most 30mm scopes work fine for me.
