Also, I didn't say anything about attacking. I said the initiative. There's a big difference.
You don't even play to play for the initiative just settle in for a long equal postion where you can positioanlly outplay your opponent is possible also. I'm surprised that somone of your rating would make the argument to learn an opening repertoire in and out and clearly over your time from getting from 1500 to 2000 you probably would have noticed that your games where won with tactics not by outplaying your opponent in the opening
I don't know about YOUR experience, but in MY experience improving my openings and play with the initiative was absolutely essential for me reaching 2000. Speaking of positional play, the main thing I improved was my play with a space advantage, but that only really showed in a few games.
I absolutely did get very strong or winning positions out of the opening (with both colors) partially because I improved my knowledge of theory, but MAINLY because I finally figured out how to handle the initiative and not be passive when my opponent hesitated. I am not, and never have been, an attacking player. I reached 1800 playing stuff like the Fort Knox Variation of the French, and trying to survive mating attacks from KID specialists.
For me, even now, I rarely beat players over 1800 because of tactics. Under 1800? Yes, they blunder a lot more.
The tactics are only for the finishing blows (for me, those are rarely mates...they're decisive gains in material).
I don't think it's realistic to expect to outplay higher rateds (I stipulated 1900-2200) positionally, long term. Get a good position out of the opening (or one where you may be slightly worse but know exactly how to play), take the initiative and keep it till you win or draw a higher rated.
Also, I didn't say anything about attacking. I said the initiative. There's a big difference.
You don't even play to play for the initiative just settle in for a long equal postion where you can positioanlly outplay your opponent is possible also. I'm surprised that somone of your rating would make the argument to learn an opening repertoire in and out and clearly over your time from getting from 1500 to 2000 you probably would have noticed that your games where won with tactics not by outplaying your opponent in the opening
which is also playing with initiative:) initiative isnt the same as attacking the king. the guy who "calls the shots" is the one with the initiative even if its in the endgame