Yes, your approach is certainly reasonable, provided you don't play ultra-sharp openings.
There are two good ways to learn opening theory without cramming material in your head :
- Play over master games who play the same openings than you do (this way you'll learn typical patterns and piece positions, which will help you find moves quicker in your games)
- Check your OTB games against a database, and look at the moment where you or you opponent deviated : try then to understand why the main move in the database is the main move (this method, a master friend of mine called it - 'learning opening theory one move at a time', and it's way more efficient than you would think...)
Here is my problem - I have rather poor memory. And opening is where you need to memorize the most. I love all the aspects of chess except for opening theory which I find boring and uninspiring.
Yesterday I made just another attempt to refine my d4 repertoire for an OTB game I have to play tomorrow and after 15 minutes I was fed up and bored to death. I feel like abandoning any further attempts. I was just wondering what will it mean in terms of future progress. I know like 3-5 moves in most of the openings and the rest I play by general principles. In OTB game it does cost me some extra time to find the reasonable moves but till now it never led to big disadvantage in the opening.
I am 1644 OTB, study tactics, endgames, strategy, master games (which gives some indirect exposure to various openings by the way). Do you think it's reasonable not to learn opening at all and only do what I really enjoy?