Agree with Doct88....
Its better to maintain funds.....
But If you don't....then there will be two factors....
1- They ask
2- They don't ask....
If 2 factor comes then no issues....But if 1 factor comes......
Then nothing very serious happens....
If you withdraw ur funds and utilize, and they ask for POF, u can deposit again, through any means,e.g selling your car...or may be any other asset, if you have plans to sale everything and go to canada.....so if u r selling any asset or car that will time near to fly i.e PPR1.
What max they can do is ask for explanation of this sudden deposit....you can provide a sale receipt of your car or any other thing...and thats it.....
I did the same.....I was not asked POF at time of my medicals in 2012, but on the safer side, I did deposit funds, so that I can provide if they ask on PPR1-PPR2...but again my account is at 50% as I too have bought another car.....
So its your luck and its your call....how you want to play...
To have a comfortable sleep, in these waiting days for PPR, its better to maintain funds....