[CQ-Contest] changing category

[N7MAL]

How do you change categories during the middle of SS. I had some health 
issues which forced me to stop/start several time and finally quitting 
around 0800Z. It is now 1800Z and I feel like I give it another chance. 
Here's the fly in the ointment I been connected to my local cluster and have 
been watching it. I  would start on 15 and of course go straight to VO1HP. 
My entry started out as A, single op unassisted. I, because of honesty, 
would now have to change my class to U. How do you change in mid-stream 
without creating confusion? I've decided to do nothing and go watch da 
bears. I'm sure something similar has come up before, and will again, I 
would like to know the solution.
TKS 73

MAL
N7MAL
BULLHEAD CITY, AZ
http://www.ctaz.com/~suzyq/N7mal.htm