I remember last year that several folks were switching from the stock slides on their Libertys to the Hicks slides because of clearance issues but haven't heard anything to that extent this year with the Allegiances. I see no reason to change as the stock slide has thus far functioned perfectely well for me. If I were to change though the Hicks would be my first choice.
The average man seeks certainty in the eyes of the onlooker and calls that self-confidence. The warrior seeks impeccability in his own eyes and calls that humbleness.