Do Barry attack and 150 attack really work that well with Colle-Zukertort? As I was looking for advice on Colle-Zukertort as described here, I found additional info about 2 other attacks that can be used to improve my repertoire pretty efficiently. Here is the information I found:


Colle-Zukertort and Barry attack combined should provide a working repertoire for about 85% of my games played.
Colle-Zukertort, Barry attack and 150 attack combined should provide a working repertoire for about 90% of my games played.


What are your thoughts on this? I'm surprised that having only these 3 tricks in hand seems so effective?
There is a book which recommended this repertoire, A Killer Chess Opening Repertoire by Summerscale.  I used those lines myself when I was in the 1400 to 1800 range, but had to give them up as they were holding back my development as a player.

As a beginner, frankly you shouldn't be worrying about it.  Choosing a repertoire should be near the bottom of your list of 'areas to improve.'  How many games have you won/lost because of familiarity with the opening?  If anything, try to play good, normal, open lines, like 1.e4 e5, and just focus on the chess.  You'll get more out of that than by studying the nuances of the Barry Attack.