This issue is going back and forth at the present time in the U.S. with industry and the FAA. We have old TERPs circling criteria and new TERPs circling criteria. The transition won't be complete for years. Then we have old turning missed approach criteria for VOR/NDB/ILS and we have new turning missed approach criteria for RNAV IAPs. RNAV criteria permits a speed limit in the missed approach turn. If that speed is significantly exceeded the results could be unpleasant, particularly with an OEI slow climber.