Adui13,
I think I posted on a different thread about my experience with Tasco. When I got my 7MM mag years ago, I did'nt have the funds to buy a Leupold or Redfield at the time. I went and bought a Tasco 3x9x40 mm World Class. I thought it was great for a few years until it fogged on an Elk hunting trip-ruined the hunt. After that, I bought a Leupold 3.5X10X40mm VariX-111. I have had this Leupold for 10 years now, and won't ever buy another brand. The difference between the two in clarity is huge, especially in low-light conditions.
Just my opinion.