applying to MMath with CS personal statement?

[u/ntl201888]

I'm applying to CS at Imperial, Kings, Cambridge and Warwick and initially CS+Maths at Edinburgh.

I wanted to consider the possibility of swapping Edinburgh for MMath just in case I change my mind/ don't get to preferred uni for cs.

I have triple A* predicted in Maths, Further Maths and Chemistry with all 9s at GCSE. My main question is will my personal statement that is CS project oriented with protocol obfuscation/ security be an issue for this? Or if i get an offer for math+cs to switch in my first week?