OK, so a week ago had a 5 page drop on my main keyphrases. No messages on GMT. Normal linkbuilding, a few guest posts some well placed articles nothing huge (all the sites for these were checked via majestic and Ahrefs first and show no issues). Did acquire an expired domain tha twas a direct competitor (allbeit in the US rather than UK) but had a good trust flow etc with a few good clean backlinks. So is this just the dance happening? Haven't had a dance that aggressive in a few years. Or is somethign else going on. Anything else you need let me know - input would be really useful.