Hmm. It seems my “760m-ish” was actually only 743m, and it took me a good ten or so attempts to better that today. Even then I only managed 771m.
I can get to about 600m without losing a life almost every single time now (except for the occassional slip up where I lose them all before I hit 200m – rubbish!), but then it all goes wrong and I lose three in quick succession. It’s like I’m “in the zone”, and then suddenly realise what’s going on and it all goes horribly, horribly wrong.
However! On my last attempt for the day, I managed to get 843m! Hurrah!