If I'm not mistaken the Leupold VX-3, 3.5-10x40 can be had with the CDS turret for around $500. If one were to buy the VX-3 2.5-8, it would have to be sent back to Leupold for the CDS turret to be added. Check the prices. It may be less expensive to get the 3.5-10 CDS version with the CDS turret already installed than the 2.5-8 plus the cost of adding the CDS. I don't think the 2.5-8 comes with a CDS from the factory, it must be added.

Just a thought.

DF