I dislike the Christmas tree sights, they are inexact and serve no function other than to sell the pistol to weak-minded punters. I believe they fit into the 'tacti-cool' section of the market, and at such would be useful if you were attacked by a empty coke-can at what American gunslingers describe as 'card-table' distances. But if the thing pointed naturally they would be redundant in this capacity anyway.

Get some normal squared off metal sights and I am sure the group sizes will shrink 30% with no other changes.