I too mainly listen dub albums from track A to track O, but still I agree that most often there are only a couple of highlights per album. But I think there's also a positive way to sight this; if every track was total mindblowing material, in the end listening to the album might become a bit dull. True mindblowing experiences call for drama, something to look forward to, something special, a high point. And to balance things, I guess, something easier that gives you a little time to breath in and out as well.
The reason why some tracks don't do it for I is that on most dub albums, for some strange reason I fail to understand

, there are always major tunes. In fact, right now, no strictly minor far east style album comes to I mind, although I'm positive there has to be at least one (perhaps A. Pablo produced?). Nevertheless, the thing is that tunes going in major scales just don't ring I bell. The spiritual strength, true musical power, which makes the weakheart tremble & flee, is what I want to hear; the tunes that make I truly feel the vibrations are always the most majestic, meditative and deepest minor tunes.
Give I ancient harmonies everytime.