Whilst a bit bored over the last couple of days I have been putting various SE numbers into
https://serialnumberlookup.fender.com/lookup/It seems that most SE04000 and below numbers are MK Strats, ( although there seem to be large gaps where numbers have not been used) above and Fender seem to be sticking to their tried and tested method of having a large amount or pre stamped neck plates and just taking one out for whatever instrument they are making at the time.
One digit up and down from mine are John Mayer Strats, one being a standard signature model and one is a copy of his black Strat.
Would love to have MK SE00666
Will try to get a life now