Airflow running line differences

[LOC]

This is a curious inquiry but I have two Airflow ridge running lines.
They are suppose to be the same diameter. It's the thinner yellow running line.
There is a noticeable difference between the two in thickness.
One I fish a few times a week and the other has been on ice so could there be some usage bloating going on?

The one I fish works perfectly but so I don't need to change it but I would like to know if there is a why.
Thanks!

 

[huronfly]

is it 20lb ridge or 30lb impact? They are both the thinner option. Either way you shouldn't see a noticeable difference if they are in fact the same line.

 

[LOC]

It’s 20 pound ridge it’s just usage. I compared the end of the running line at the backing and there it’s not noticeable. Thanks