To some of you so called experts on opening play...
Thinking that what opening you play hinders your middle and endgame technique is totally false. Blaming getting out played in the middle game and losing on the opening you choose is also false thinking.
Many GMs and IMs use these systems. If you can't get these openings to work for you then your not going to get a main line to work either. Learning main line openings does NOT improve your chess. Chess is really about tactics, the middle and the end game. The opening is only a part of the over all game.
Here is a quote from John Cox who is an IM 2400ish FIDE rating from his book "Dealing with d4 Deviations"
"In the 1930's the top guys didn't know whether these openings or the Queens Gambit were better. These were the 2700s of their day; They understood chess a lot better than I do, and if something wasn't obvious to them, it was arrogant of me to think it would be obvious to me if i just figured it out over the board. I could list easily a hundred 2550+ players who have succumbed to the openings in this book"
He admits he's been torched many times by these opening systems too...
Here is a clue... 99.9% of his book doesn't bust any system... all his book does is get you to a level position as black. Then what are you going to do then... Wing it?
Alekhine, Lasker, Capablanca etc all used these openings.. Currently Kamsky Blatny Kovacevic Hodgson Yusupov Hebden use these system against top tier GMs.
People who think an opening effects their chess technique or skill are the type that chase openings over and over, never really mastering a single one.