After the I18/F4?

[SleightOfHand]

After learning zen a few months ago, I started learning new indexes. I learned a few more hard and soft doubles, 13-15 v 2-6, and a few more surrender indeces. Im curious, after the I18/F4, what are the most valueble indeces?

[moo321]

Originally Posted by SleightOfHand

After learning zen a few months ago, I started learning new indexes. I learned a few more hard and soft doubles, 13-15 v 2-6, and a few more surrender indeces. Im curious, after the I18/F4, what are the most valueble indeces?

8 v. 4-6
Soft 19 vs 4-6
Hard 16 vs. 7-8
XX vs. 2-4