JFP is supported by EPSRC Scholarship No 3000207032. FIP and MB are supported in part by the Engineering and Physical Sciences Research Council (EPSRC) [Grant Number EP/R034737/1]. CMR is supported in part by the RCUK Energy-Programme (grant number EP/EPI501045). PGI is supported by an EU H2020 grant, agreement No 3000207035. Computational time provided by Plasma HEC Consortium EPSRC (grant number EP/L000237/1). This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053 and from the RCUK Energy Programme (grant number EP/T012250/1 and EP/P012450/1). Withal, this work has been carried out within the framework of the Contract for the Operation of the JET Facilities and has received funding from the European Union's Horizon 2020 research and innovation programme. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors acknowledge EUROfusion, the EUROfusion High Performance Computer (Marconi-Fusion), the use of ARCHER through the Plasma HEC Consortium EPSRC grant numbers EP/L000237/1 and EP/R029148/1 under the projects e281-gs2, and software support from Joseph Parker through the Plasma-CCP Network under EPSRC grant number EP/M022463/1. This work also received computational support from Joseph Parker of CoSeC (the Computational Science Centre for Research Communities), funded through CCP-Plasma/Plasma-HEC EPSRC grants EP/R029148/1 and EP/M022463/1. This work was supported by the US Department of Energy through grant DE-FG02-93ER-54197. JFP acknowledges travel support from Merton College, Oxford. We are grateful for the hospitality of the Wolfgang Pauli Institute, University of Vienna.

Data associated with paper 'Toroidal and slab ETG instability dominance in the linear spectrum of JET-ILW pedestals.' See attached Readme file for instructions.