OK, now virtually every keyword in the account has gone to 1/10 QS. I am completely at a loss, nothing like this has ever happened before. So, because everything has gone from 8 to 1 it would appear it's a blanket issue with all my landing pages (and nothing has changed in the last week or so that I can think of, certainly not of any significance) or it's just an effect of adding lots of new keywords, deleting non-converters etc and everything has gone bad QS wise temporarily and will come right soon.
I'm really stuck what to do and would appreciate any expert advice.
