Hi, just thought I'd post as I haven't heard of this before but may be helpful to others. I have a edition 30 and put a catch can on, was fine at first then I had lots of smoke coming out exhaust and lost a fair bit of oil. I found that the catch can was causing exsesive crankcase pressure build up and causing oil to push past the oil seal on turbo filling the exhaust and intake. I also had oil dripping off the turbo. I have now put the original pcv back on and cleaned system, messaged forge and they are aware that this happens to approx 1 in 100 2.0 tfsi engines and they are working on a fix for this. Will repost when I have the fix! Hope this helps any one that has had this problem.