relating to the amendment 3 and the ridiculous non-combustible CU reg., as a part of my after care service, i always book a free to client call-back on any CU changes after 2/3 years to ensure that there are no problems, checking tightness of terminations etc. this is one i installed in 2012, checked today. some will knock the chint boards, but i've never had any problems with them, and the solid RCD feed links make for a tidy amount of room to dress your cables in. as it happens, 2 of the N terminations in the N bar needed a slight tweak. all others were solid.