improving defence

mittens' greatest weakness is dealing in a lot I think. Here is a sample of the deal in rates of each tile: (note: 1~4z = ESWN; 5~7z = haku, hatsu, chun)

1m 98
2m 100
3m 130
4m 146
5m 187
6m 158
7m 181
8m 126
9m 99
1p 80
2p 149
3p 143
4p 174
5p 202
6p 193
7p 171
8p 164
9p 95
1s 101
2s 135
3s 163
4s 184
5s 184
6s 194
7s 176
8s 139
9s 112
1z 48
2z 34
3z 29
4z 29
5z 57
6z 47
7z 48

Originally mittens prioritised the above tiles in reverse order if they had the same likelihood of improving the hand. So, if 9m and 5s had the same "rank", the 5s would be thrown before then 9m - a mistake according to the above results. I've since changed this to have the following priority: 1,9 > 2,8 > 3,7 > 4,6 > 5. The process for honour/wind tiles is still the old reverse order system. That might need adjusting too, but I would like to see how this changes things first. mittens has gone up by about 30 in rate already (change was done yesterday).