I have recently returned to the KID myself after many years, as I found that I also felt most comfortable in the typical KID positions. When I last played the KID, I would try to avoid tough lines like the 4 Pawns Attack and the Saemisch by waiting until White committed to Nf3 to adopt the KID and playing various other lines if he did not (such as the Old Indian with d6 and Bf5, the Budapest Gambit, or the Tango with Nc6). But coming back to the KID now I have decided to go all in and create a KID-only repertoire.
I have found Dejan Bojkov's "Modernized" approach to the KID most appealing, as it definitely cuts down on the theory to some extent:
http://kenilworthian.blogspot.com/2014/04/review-of-dejan-bojkovs-modernized.htm...That repertoire focuses on the idea of an early ...c6 and eventual ...d5 in many lines, which I like a lot. Bojkov also has an excellent ChessBase DVD that focuses more on the early Na6 lines, which are also interesting.
Besides Bojkov's work, I also like Eugene Perelshteyn's various videos (at Chess.com, ChessLecture.com, and on DVD) on his approach to the KID with Na6 and some interesting lines vs. common White systems, such as the Byrne Variation (with c6, a6 and b5 with delayed castling) vs the Saemisch and the Kavalek (with c6 and Qa5) vs the Fianchetto. I have put together bibliographies on these systems if you are interested:
http://kenilworthian.blogspot.com/2014/02/classical-kings-indian-with-6na6.htmlhttp://kenilworthian.blogspot.com/2014/04/the-kavalek-system-vs-kings-indian.htm...http://kenilworthian.blogspot.com/2014/03/samisch-kings-indian-byrne-system-e80....Ultimately, if you choose less mainstream systems in the KID then the emphasis will be less on theory and more on ideas, as most opponents will not know what they are doing.
Urusov, I am interested in your comments and experiences. I've looked at the lines in Bojkov's book and Eugene Perelshteyn's various videos as well since the idea of slightly offbeat (but sound) lines is certainly appealing. However, it always seem to me that Black's resulting positions had much more limited winning chances against strong opponents (against a weaker opponent either will work) and indeed when I experimented with it OTB I ended up drawing. Ultimately I decided that if I was going to play the KID (with the risk it entails), I wanted to maximize my winning chances which lie primarily in the main lines. Therefore I decided to put those lines on the shelf - but perhaps I'm being too harsh in my assessment.
I see that the OP has decided to stay with his Slav, but I'd be interested in your thoughts (or others) on this topic.