Hi Oliver, Thanks for fixing the bug in HK O3! I played with my friends and was able to get a full 4 wind round done. :)
We had some unexpected scoring results, and am hoping you can help update it (or correct me) if possible.
Someone was able to get a Full Flush, and got 9 points in the final scoring, but we believe it should be 6 (same as http://mahjong.wikidot.com/rules:hong-kong-old-style-scoring (Variation 3))
Also, we occasionally saw a "Single Chance Wait" with 1 point. We're not sure what this is or when it is satisfied, and can't find it in the rules from the wiki.
Otherwise, thank you again!