Despite Halfie and I having almost identical Villager multi-fuel stoves on our boats, he finds sweeping the flue one of the best jobs whereas I know its the worst.
I suspect the reason is that they are only "almost" identical. The crucial difference is that Halfie's has a removable baffle plate. The baffle plate is where the soot that's dislodged by sweeping the flue collects and a removable one makes the job of soot removal easy, as Halfie describes.
Here is Halfie's shot of the inside of his Villager Puffin:
See how the baffle-plate sits on runners for easy removal.
And here's the inside of my Villager Heron.
The baffle-plate is fixed to the roof of the grate and cannot be removed so the soot has to be cleared using your fingers!
I'm not alone in having a stove to this design. Nev on Percy has he same problem.
In the meantime,in between sticking a camera up the inside of the stove, crew member Ken and I have rescued Starcross from Uplands Basin and are now at Middlewich - destination Marple.