Finally found a proper hill in Edinburgh. Kaimes Road, effectively the Edinburgh Zoo hill. I overcooked it first time and had to pause half way up, but managed it all on my second attempt. It ascends 72m in about 720m – average of 10% – and took me about 4.5 mins. In contrast, the road up Arthurs Seat ascends 80m in 1100m – nearly same height, but you have 50% longer to do it in. The 10% is significant, because the first two kilometers of Alp D’Huez are at 10%.