Rally School actually has 4:30, as far as I know?
Anyway, the stage won't be kicked out this late. All stages that are used have been listed for a while now, plenty of time for anyone to try them and report any issues. Also, there never was and most likely never will be an option to restart your rally once you started.
I'm sorry to say so, but you're out of luck here.
Okay-I was off on my RSchool exaggeration. But it is roughly have the length with nearly the same completion time. Disproportinate.
How can one test the completion time of a stage aside from doing a dummy run of the stages? You don't get this information on individual stage by stage practice
Note for next season:
In the future this stage should be placed deeper in the rally so a build up of lag time can happen