Yeah, I'm just rattling through a few setups to prove what works to myself. Having the Tradfris involved would have been cheating for this mesh. 
Also, I wanted to see if the AlertMe gear alone was truly solid on HE. It seems to be, with the exception of configurations being sent to the SPG100 outlets as mentioned by @mike.maxwell. I've not been able to catch whether they're sending the required command, but while they're not recognised automatically in the official driver they may not be getting the configuration response they expect. As I might have mentioned previously, upon pairing I have to go and apply the "Iris V1 Outlet" system driver manually.
The orange LED seems to be a 'config OK' indicator of some kind and it would go out occasionally even on the original AlertMe hub, usually to return a few seconds later. On an AlertMe-only mesh with HE I need to go and hit the configure button on the Devices page and it comes straight back to life. Works as a repeater perfectly throughout though.
