OP
Octopus
and just 2 hours to do a change wouldn't allow much time to go round to each socket and do tests which would probably indicate a spur off a spur either!I suspect that the OP is more clued up than his electrician in some respects; see his post No. 32. Although he may be being a bit over cautious here; a 20A MCB would likely do the job, depending on cable size and installation method.