And for full disclosure, I'm using:
Thomas Fawcett Maris Otter
Simpson's Medium Crystal
Crisp Chocolate Malt
2010 whole leaf Fuggles 4.5%AA from Fresh Hops
A packet of Nottingham lot 1089001V
Durham, NC water, filtered, adjusted to 57 ppm Ca, 2 ppm Mg, 25 ppm Na, 103 ppm Cl, 41 ppm SO4 with CaCl2 for an expected mash pH of 5.21.