transition was among the motivations of the GEMR model in the first place [18]. However, the magnitude of even an impressive pedestal current peak is only one to three times the nominal saturation current given by n$_{e}$ec$_{s}$ , while values closer to n$_{e}$ec$_{s}$qR/L$_{⊥}$ are required to enter the energetics effectively. Since qR/L$_{⊥}$ ∼ 200 for the nominal case, current gradient effects are very weak. The main conclusion of this study is that the qualitative nature of the saturation and aftermath of the initial IBM blowout is the same as for generic edge turbulence given a small- amplitude start. The transition from linear mode structure and energetics to turbulence found for these blowout cases is the same as in Ref. [41]. Only the nature of the linear mode itself differs. The blowout saturates upon its own self generated drift-Alfv´ en turbulence, with a strong ion temperature component given the gradients. The vorticity spectrum reaches quickly to the ion gyroradius ( ρ$_{i}$ ) scale, requiring the gyrofluid model and explaining the numerical difficulties seen with Braginskii models — it can be argued that the cases given in Ref. [23] crash on entry to the nonlinear stage. Convergence in the aftermath requires resolving at least ρ$_{i}$ . Unfortunately, due to the lack of a self consistent H-mode state in a well resolved computation, no threshold is found. At lower beta values one simply finds generic edge turbulence driven by the temperature gradients. It is not clear that this scenario really describes an actual ELM, although the energetic growth and decay curves are not unrealistic. However, with a well resolved transition to nonlinearity in both the energetic peak and aftermath phases, our studies find no evidence of an explosive MHD phenomenology. Indeed it can be argued that nonlinear MHD processes are pre-empted by the efficient transfer to smaller scales through the two-fluid drift wave physics more commonly associated with microturbulence. This work was supported by the Austrian Science Fund FWF under contract Y398, by a junior research grant (“Nachwuchsf¨ orderung”) from University of Innsbruck, and by the European Communities under the Contract of Associations between Euratom and the 24 Acknowledgements VII. CONCLUSIONS