Hey Norco,
I always owned box-type clips until now. This fall, I finally purchased a Remington 700 ADL that came with a "blind" clip and from my experience so far, it's just fine with me. With the blind clip there's no need to worry about losing your clip, although it takes an extra 10 seconds or so to load and unload. If I was buying a gun, I would not let the clip enter into the scenario at all. That would be like buying a car and worrying about whether the antenna is on the front right or the rear right of the vehicle... I'm not busting your chops at all- just trying to help you out.
Take care,
Jim