Phono preamp tube rolling.

@lewm 

it almost certain that you will be certain you hear differences

 :))))))) that is funny one. 
In fact I could hear the difference almost right away, however to realize which one is better to my ears take some time. Could be several days.  

@tomwh 
I don’t understand why you guys so desperately want to analyse some thing,  give a suggestions or answer some questions. It was no questions in my post. I just wanted to hear other people experience and stories rolling phono preamp tubes. Again my post did not contain any questions. 

My experience was good.

@tvad 
Joe mentioned Mullard CV4003 box plate as the best of the rest…. Did you personally tried that tube?

@lowrider57 

My experience was good.

What kind of tubes did you rolled? Components? plz..
outcome on best choose?