Thanks for this Dan, a great idea.
Which? Gardening’s results from 2014 gave good marks to Verve multipurpose peat-free. For some reason they did not test Melcourt. Ones to avoid were Dalesfoot wool compost for seeds, John Innes No 1, Waitrose multipurpose and Carbon Gold All Purpose.
I agree about W Riding, it is dense, full of nutrients, so good for mixing with something lighter.
