best time to cut den keikis?

[tmoney]

hi peeps,

we have a den. green surprise, which by our research is a nobile group den from yamamoto. the thing is mostly keikis, the mature canes are leafless and growing on them are mature growth with root bundles anywhere from 10 to 30 cm. i should post a pic so you can see what i mean....the plant is a disaster.

so, basic question that i haven’t been able to find a simple answer to, when is the best time to pry off the keikis and pot em separately? they are all mature as well, with 4 to 6 leaves and as tall as the old canes. going into winter im feeling now is not the time. should we wait till spring and new growth/post flower (assuming it flowers)?

thanks for any info