I managed to get a stone chip low-down on the passengers side. Used Windscreens Obrien (luckily have no excess on windscreen repairs with my insurance so repair was free).

The repair job is ok I guess, however the process of repair actually causes vibration (high frequency vibrations with cleaning and then resin deposition into the stone chip) and this caused a small crack that isn't spreading. Better than upsetting the windscreen seals with replacement however...