I am currently applying to MBB for the second time. I initially applied a year ago, completely on a whim and knowing little about consulting in general. I was immediately invited to take the PST (with three days' notice) and failed it. I have an excellent record & CV, and spent the following year talking to consultants & working on consolidating my interview and maths skills (in addition to my day job).
How much do you think this will be an issue when re-applying?