Originally Posted by
ranskis
it gives also 15% more points when flying on SK flight number (and perhaps SK metal is also required).
It requires SK *group* metal (SK, BT, KF, WF, EE). SK codeshares outside the SK group are not eligible (i.e. SK code on LH metal would not give any bonus to EBS or EBG, whereas SK code on BT metal would give).