Could you look at the Biocompatibility quality and how it works?
Sadly, they copypasted the same crap that was in Chromeflesh, so you get the not-really-clear rule of "10% reduction (same math as with Adapsin) then round down to the nearest ten.
Major thumb down for that.
and they're capped at 6
Which made it necessary for me to rearrange 2 Chars 
with a not so happy Dance
Medicineman
Even the English version pointed out skillsofts where capped at Rating 6
Skillsoft yeah, sure
but not Hardwired Skills
it's different 'ware with different inherent Rules 
Anyway, I retconned my two Chars and now everything is Ok
HokaHey
Medicineman
The Skillwires had no Skillcap, true, but they required additional Skillsofts in the english Version and these always had a max-rating of 6.
So, you could, in theory, but in a R12 Hardware in your body, but still would have had only R6 Softs to run on them.
Hey Duelist, could you check the custom drug tables in the German version? I'm curious if the addiction thresholds and addiction ratings have been modified from the crazy levels of the English version.
The only change in the table seems to be that they switched out all Asterisks for hyphens, in the table.
Foundations are still 6/2, Enhancer +1/+1, costs and Availability modifiers are also the same.
So the Addiction ratings and Threshholds can still skyrocket quite easily, but keep in mind that the german rules for Drug consumption are a bit different. Not sure if this is good or bad in this particular case, only ever bothered with Cram.