P.S. Benkö is like narcotics. It is very difficult to give totally up. I found this post of mine from 2004
I used to play it, but I have now given up.
There are too many annoying lines:
The fianchetto with Rb1 is very frustrating, The Ne8
line is not new at all and changes nothing.
others:
4.cb a6 5.e3 , here g6 is cramped and Bb7 lines
give _WHITE_ good attacking changes
4.Nf3 (surprisingly strong, as it gives many possibilities
to transpose to good lines) black finds it diffucult
to avoid 4.-g6 5.cb a6 6.b6! (6.e3)
4.cb a6 5.b6 is very worrisome
But if your opponents are not very strong, benko is
quite ok. In practise some skilll is required form white to
utilize the above-mentioned lines