@1
"my opponent would have many natural lines to choose from but it would still be an active, open game." ++ Ruy Lopez
"Maybe I should play more openings, so I can't know them all that well?" ++ The less openings you play, the better you know them. The more openings you play, the worse you know them.
"Should I just go out of book at every opportunity?"
++ That is a viable strategy: sacrifice objective soundness for surprise value.
"Maybe I should play non-trappy active openings that are objectively slightly worse, so that the gameplay is active but I compensate for the objective disadvantage by being more familiar with the kind of position than my opponent?" ++ That is a viable strategy.
When I was lower-rated (1000-1200), I used to play some trappy openings or openings that often gave me an advantage because my opponents would miss early refutation options. I played King's Gambit pet lines, the Leningrad Dutch, the Budapest gambit, the Stafford Gambit, etc.. I found that my rating improved but I was worse at middlegames and endgames than my opponents at that rating and I found my games unsatisfying. I would either trap my opponents or come out with an advantage then struggle to win or end up in an equal position then lose it.
Subsequently I have dialled the repertoire back and my chess has improved over time (currently 1400-1450 at 10:00). I actually find it good to get an equal position and try to play chess. However, I still use some active openings because I enjoy the crazy, gloves off kind of games; plus it is good to practise tactics, which is the weak point.
In some positions I purposely do not take advantage of some of my opponents' mistakes, giving them a chance to transpose into the main line so the game is more equal. This keeps my rating from improving due to tricks, but still feels a little weird.
Ideally I would like to create a repertoire which is active but not trappy. Ideally, my opponent would have many natural lines to choose from but it would still be an active, open game.
Am I asking for the impossible? An active opening without too many concrete lines and one that does not always end up with a similar position/pawn structure?
Maybe I should play more openings, so I can't know them all that well?
Should I just go out of book at every opportunity?
Maybe I should play non-trappy active openings that are objectively slightly worse, so that the gameplay is active but I compensate for the objective disadvantage by being more familiar with the kind of position than my opponent?
I hope you get the gist of my rant. Any kind of advice is appreciated.