You get very similar results using slab oceans (no changes in transports etc.), and similar results using very different conceptual models — in this sense it is a robust result. (realclimate.org)
IIRC (which I might not — twas a while ago), in our MIROC ensemble (slab ocean GCM), members with high eqm climate sensitivity also had high control temperature. (realclimate.org)
Previous studies demonstrated that the cloud feedbacks derived from the Cess experiments well capture the intermodel differences of feedbacks in the equilibrium response of slab ocean models to a doubling of CO2 (e.g., Ringer et al. 2006). (climateaudit.org)