Great idea, both of them. I'm very tempted by the One Month group. It might spur me on to finish the first draft of The Fifth Daughter while I'm waiting for TWH to be rejected by all the top New York agents…
Or, to be more honest..
<Added>Er… belay that… just checked, and horrified to discover I've only done 31,000 words so far – it must be leaking out somewhere…
Maybe I can get it to the half way point – that’s about another 20k… can I do that in the shortest month of the year? Would it count?