Fright Lane During Halloweekends?

*I realize I worded this poorly so I've edited it*

I'm going to Halloweekends on a Saturday for the first time this weekend. I don't particularly like the Haunted Houses as much as the scare zones. In past years when I went on Friday nights these didn't really have any lines, yet they were never crowded inside. Over half the time we couldn't even see anyone else walking through. Usually when we did though it had an impact on the experience as we knew what was about to happen. Therefore I would prefer not to bother spending money on a fright lane pass if the scare zones will be filled with people due to higher crowds. So I was wondering if Fright Lane is worth it, as in are they crowded inside still or do they just have potentially long lines, for these: Blood on the Bayou, Cornstalkers, Cut Throat Cove, and Fear Faire. Does CP try to keep a small amount of people going through these so it's the same experience as a Friday, or do they try and send as many people as possible through to speed up lines?

Also, How fast do you think they sell out of fright lane? I heard fast lane sells out pretty quickly, and we won't be to the park until 2 - 3.