Three years of A Levels, but I've met Oxford's requirements in two.

Hi, before I begin, I just want to point out that I don't intend for this thread to be another 'are my grades good enough' one!

Basically I had a change of heart during my time at sixth form as to the degree course I wish to study. After achieving 12A*s at GCSE, AAAAB at AS and AAA at A2 (from a school which unfortunately Ofsted describe as 'inadequate' - although I don't agree with this) I am now in the rather unusual position that because of my change of heart, I'm still in sixth form in Year 14 studying for more A Levels. My question is whether Oxford would frown upon my unusual approach and my application be disadvantaged as a result. I'm applying for History, and the History department do state 'the A2 levels need not be taken in the same academic year' so does this support my intentions? My further A Level study in this year consists of me taking an entire A Level in one year (which I'm predicted an A* in), attaining A2 Further Maths, retaking one Maths module and gaining an extra AS in a subject very much related to History.

So at the moment over the normal two years I have AAAab (this meets Oxford's AAA entry requirements), however at the end of this academic year, I am predicted to have A*A*AAAaa. Would I be disadvantaged for attaining this over three years in Oxford's eyes rather than two?

Historically, I am also tutoring History students and engaging in wider reading during Year 14.

Thanks for reading this, any responses will be greatly appreciated!