Well we put a new clutch kit with springs in it and I think that the supposedly 10% stronger EBC clutch springs aren't as strong as they claim. I can spin the clutch in 2nd and 3rd from around 4k rpm.
I had forgot that I went through the same thing on the 84' Sabre 700. I put in an EBC clutch kit and I ended up replacing the springs with Barnett heavy duty springs and problem solved. I'll get Paul to order some Barnett springs for the GS 1100E.
Otherwise I'm having a great time with the bike