First, welcome to the SK forum.
This has of course been discussed all over and the standard reply is that there is no standard answer.
But I am in the exact same situation, I have requalified for EBG three months in to my new qualification period. Meaning I will "throw away" a lot of basic points as I am not aiming for any additional elite level for 3/4 of a year.
I will probably stick to Eurobonus anyhows, since I need the points for upgrading on SK longhaul and I do a lot of Eco Flex intra Europe (you get a lot of points on SK compared to other programs for S class) But some nice coupons or something when requalifying and then every 45K would be appreciated. Tommy777 is on the case, the first meeting with SK is soon, is it not?