MK V SoroSuub keypad maths doesnt drop???

Higher levels will drop it a little more frequently, but it never becomes easy.

They drop in clusters, you can easily spam the sim button ten times and not see any and then hit a space of five sims where it drops each time. Unfortunately it's quite frequent you see like about 5-10 attempts without a single drop...

They do however pop up in the shipments every now and then.. Also one of the challenges at higher tiers drop some too

I can never tell what I'm buying at shipments
These names are too complicated to memorize, and there's no coloring on gear in shipments