Really silly I know...
but..
when they say 10 mins apart that means they can be 9mins 46 secs and then the next one might be 10min 33 secs rite? They dont actually have to be 10 mins exacty apart? Sounds silly I know but was just wondering as all of mine last week went down from 5 mins, 4 mins and then 3 mins but with some there were 40 secs difference IYSWIM?
Cx