I'm talking about opening with the "high point" of a "shimari, such as the 3-5 or 4-5 point. The disadvantage is that it allows the opponent to enter near the corner, such as the corresponding 3-4 point. But having an "extra" move in the corner should compensate for that fact.
One thing I've noticed is that "high" and "low" playing styles alternates every decade or so. That is, "low" is all the rage for about ten years, until everyone knows how to play low, then "high" is rediscovered (after having been neglected).
Could "high" be about to be rediscovered after a period of neglect, and would this mean that we'll soon see more "high" openings, particularly by White.