OK - interesting phone call with the workshop this morning.
First thing he asked, "is it an ABS model?" "Yes", I replied. And straight away he told me, "Yup, seen this before, by pushing back the pads you've created an air bubble in the ABS module. The only way to fix is to bleed, bleed, bleed and bleed some more" Goes to tell me that they've dealt with this on numerous V-Stroms, and by raising the front wheel in the air, moving the pipes around and knocking the ABS module about a bit and bleeding nearly 2 litres of brake fluid through it will eventually resolve it.
So, as they know about this and have dealt with it, I've got it booked in with them next week to sort. So, I won't get it back until after the Easter Weekend, but it's still early in the year, we're still technically locked down so just a little upsetting.
Frustrating that no mentioned of this in the workshop manual.
Pete