Cycle Sportives

anyone planning on doing this?

I expect some of you have done it before, lots of lumpy bits I gather including Ditchling Beacon.
I'll probably be doing this. It doesn't go over Ditchling though as it's run over the western end of the downs. 2000m of height gain doesn't sound huge compared to some sportives, but I know the area quite well and it's all short steep climbs and not much flat for any distance.