Still waiting to hear whether international shipment by letter post of my ink samples works OK, and @silverlifter has been responsive and in touch (thanks!), but it's just that NZ Post isn't coming to the party and delivering promptly one way or the other.
As far as the sets of Pilot Iroshizuku ink samples go, I think I'll go with something like this:
Set #7: momiji, yu-yake, kiri-same, shin-ryoku, syo-ro, kon-peki, ajisai, shin-kai
Set #8: kosumosu, ina-ho, chiku-rin, tsuki-yo, tsuyu-kusa, yama-budo, tsukushi, take-sumi
Set #9: tsutsuji, fuyu-gaki, ku-jaku, fuyu-syogun, ama-iro, asa-gao, murasaki-shikibu, yama-guri
guided, among other things, by the voting results here: http://www.fountainpennetwork.com/forum/topic/290775-pilot-iroshizuku-full-line-24-inks/ of which colours are popular. Out of 597 votes in the tally, set #7 has 199, set #8 has 198 and set #9 has 196; and each set has at least one blue ink, one teal ink, one red or magenta ink, one dark ink and two light-coloured inks. That's probably a better idea than to group the ink colours by intensity or by colour family for closer comparison, when most interest expressed by way of votes in the other thread go to the darkest inks (312) and the blue and teal inks (245).
I have fourteen of the twenty Sailor Shikiori ink colours, so maybe that can form two sets of seven:
Set #11: okuyama, rikyucha, miruai, souten, yonaga, shigure, chushu
Set #12: yodaki, kinmokusei, tokiwamatsu, yamadori, shimoyo, nioisumire, doyou
Edited by A Smug Dill, 26 November 2019 - 07:48.