Although it is impossible to prove one way or the other, opening the voting before everyone has danced must disadvantage those who are yet to perform - namely Natalie & Sophie in part 1 and Natalie in part 2.

There must be some, even if it is a tiny minority who cast their vote(s) having seen Susannah dance, then Abbey come on with an excellent Showdance followed by her crowd pleasing Quickstep.

Then Natalie comes on and gives such fabulous performances that just maybe some would think 'if only I had waited...'.

It is obviously not going to affect the hard line supporters who are voting for a specific celebrity irrespective of the performance but out of 6 million votes cast, I wonder how many neutrals are thinking that they maybe voted in haste for the wrong dancer?

The voting was opened after everybody had danced? Everyone did their Judges Choice dance, then the lines opened, then in the second half the vote opened more or less as soon as Sophie was off the floor.

I have to admit, I maybe admit wasting my 5 free online votes for the first half as soon as the lines opened, rather than waiting for the showdances to finish, but I don't think that would have disadvantaged any couple in particular.

But anyone who saw something later could just have easily used a phone vote if they had used up all of their 5 online votes.

Anyway, it's a chance that the early voter takes, seeing as they should be well aware that this situation might occur.

In other words, it is likely that the uncommitted (non hard line) viewer will have waited to see all dances through to a conclusion so that they can properly decide where their vote should go.