A good bracing walk along Castlerock beach it was. Actually a bit too bracing, so I took to the dunes to shelter me from the worst of the wind.
Here's what things looked like after a dunk in Moersch EasyLith developer (Foma 131 paper):
I'm enjoying this process, I have to say. I was using 15ml A + 15ml B and then a good slosh of water to bring it up to about a litre in volume. Temperature was slightly higher than normal - around 25 degrees. Nothing much happened for the first 5mins and then things started to appear bit by bit. By about 10 mins I pulled the print. As time went on and the temperature dropped the dev times got a bit longer. By the end of the session the temperature was down to about 20 degrees and times were up to about 13mins.