The activity profiles I use both have Timer start mode set to prompted, with a start notice speed of 9.66kph (no idea where that speed value came from, I didn't set it). Anyway, the problem is that I get no prompt to start the timer when I set off, even though the 1030 says GPS ready and, according to the speed field on the 1030, I'm exceeding 9.66kph.
The 1030 is running 7.30 FW, and I performed a device reset when I upgraded to that FW.