Are you going on the Scandi-tour? I found out about it (and this place) too late. I will however be back in Sweden late June after my first ever visit to the United States and Six Flags Great Adventure. Maybe I'll pop by Gothenburg the day you guys are there just to see some other coaster-fiends.
Ps. Cobra at La Ronde, Montreal in your country Canada was my first ride on a stand-up coaster (and probably Intamin too). It used to be in Sweden untill it was sold in 1994.