Not sure... A part of me wants to discard 3/4p because double ryanmen like this isn't as good as it seems... 6s also looks tempting! It does lose 36 (only 1x6s left, though) ukeire but we're keeping 58s and it seems like a good compromise between a normal hand and Chiitoi. I'll go with 6s.

It seems to me that discarding 3p gives the widest ukeire. It leaves us with a floating 4s and a decent chance of Iipeikou. 6m is a part of nakabukure 5667 so 4578 give us ryanmen.

@MJS I can still make a pair out of 79p after cutting 9s.

I'd discard 8p. 1123s is a strong shape for Pinfu.

I agree about 9s. We can't discard 79p because that would set us up for a bad backfire after drawing 8p.

Decent Pinfu material. I'd discard Chun.

Enough Pinfu blocks. 2m2p8p are good enough to make a pair. 9p should go because penchan wait isn't helping our Pinfu.

I'd probably fix 8s pair. Ryanmen in Manzu have overlapping ukeire and ryankan in Pinzu isn't ideal. Nakabukure in Souzu can produce two ryanmen blocks.

This is difficult to me... Too many pairs so I'd just fix the set in Pinzu by cutting 2p. I think that the lone 8m is stronger. If we draw 7m, we can discard 3s.

Hmmmm, I'd discard 3p. Keeping three pairs is important for speed because of higher calling chances. Also, 5p is good as a pair and the hand can still accept 6p thanks to ryanmen. 799s is good for calling - 8s is, in general terms, more likely to be discarded by Kamicha than 4p. 9s is our best Pon material!

Even though I like terminal shanpon waits, I'd cut a pair (don't see any difference between them) and hope to get Pinfu (and 5p!).

It's a close call between 6p and 2p... 6p is to balance Chiitoitsu and a normal hand. We have a Yaku already so we can Riichi with shanpon if we get 47s after cutting 6p. Or set a suji trap... The problem is, to me a least, that neither 46p nor 56s are good as Chiitoi final wait... so I'd discard 2p for Pinfu-Ippeiko. It can easily turn into Mangan!

I also like 6m. It's easier to upgrade compared to 224.

I like 1p. 8s is a good pair and 135 is nice on its own. I'd also like to move towards Tanyao-Sanshoku