Right now, sucmodqty works with (10), as seen in the news.txt
.Club. (10) /5h/ *COMMON* [sucmodqty]
I tried using it with [patch:10] to see what would happen:
.Harvest mountain bog ore. "Hunting Horn" [effort:2] [phys:arms,hands,stance] *WEATHERLORE* /1h/ [noquality] [patch:10] [assist:1] [sucmodqty]
When I select 10, it always produces exactly 9 (across 4 trials, so not very scientific) but my weatherlore is 35 so i would expect some more variation.
To test it further, I changed it to use the CROSSBOW skill instead, bcause I have only 12 CROSSBOW skill, but I still always get 9, across 4 more trials.
I put this as as suggestion and not a bug report because I suspect it is just unimplemented, though it feels buggy that I get 9 instead of 10.
In the meantime I'll change it to use (10) and take /10h/ and not have patch