b) Just because you’ve got it set up right now, doesn’t mean it stays right for a long period of time… It seems (or maybe its just me) I have to adjust settings on a far more regular basis than I did on MDI (about every 3 months or so, I need to tweak to a greater or lesser extent) – so its still hard work to run once you’ve got it set up. (But worth it, honestly, it really is!)