Did my longest run yet this morning! 16km! Started dipping low after about 7km (hadn't turned my pump down enough) so had a couple of glucose tablets and unclipped my cannula (hands were too cold to push buttons) and was fine until about 10km, when I had another three glucose tablets - at 13km I checked my sugar again and was 5.4 with an upward arrow, so reconnected my pump (at 100% of my basal rate rather than the 20% I'd started with) and finished the run. I've been high and low and high since, and it's really cheesed me off, but actually I'm really flipping proud of myself.
I don't know if I'll ever crack it, but maybe one day.