ColinJ
Puzzle game procrastinator!
- Location
- Todmorden - Yorks/Lancs border
Hang on ... do you actually have many longish, steepish hills in London? 
(I'm talking about (say)1,000 m at 10%, 500 m at 15% or 200 m at 20%.)

(I'm talking about (say)1,000 m at 10%, 500 m at 15% or 200 m at 20%.)