Okay so far have confirmed Oxford, Imperial College, Durham and Nottingham all accept additional further maths
Bristol, Bath and Manchester could not give definitive answers actually i think Manchester said they did cant remember that detail now that is worrying.
So the only university I have found that do not accept additional further maths is Warwick.
I will write to them next year assuming I am successful with Maths and Further Maths to ask if me having a degree makes any difference.
However Oxford Imperial Durham and Bristol are all hot targets of mine and I don't think any of them require Physics. I would likely get offers from Durham and Bristol, and with a strong performance in the MAT an offer from imperial + an interview with at Oxford.
it does not appear that an A level in Physics would make a significant difference to me getting an offer unless I applied to Cambridge who i think accept additional further maths but like Physics.
So in reality all Physics can do is add another condition to offers I probably would have got anyway. as well as costing £150 or whatever for each exam plus hotel stays + transport + food out etc.
So basically a grand or so expenditure and a lot of extra time commitment to get stressed out about entry requirements that did not need to apply.
if say my odds of getting an Oxbridge offer were X and my odds of getting an Oxbridge offer if I took Physics next year as well were X+0.4X say so lets assume my odds were 42.5% with Physics my odds were now 59.5% then Sure it is probably worth taking.
However This appears to not be the case.
So I guess I wont be applying to Warwick if they wont take additional further maths.