@Johnny Krawczyk: I am also a roadie, and the f* cores get clogged with grime too. When a tube is done (in my case 10 patches) I harvest the core if it is still working. So no cores from me.
![](https://zigak.files.wordpress.com/2009/08/100_53251.jpg)
May 11, 2017, 11:51 p.m. - ZigaK
@Johnny Krawczyk: I am also a roadie, and the f* cores get clogged with grime too. When a tube is done (in my case 10 patches) I harvest the core if it is still working. So no cores from me. ![](https://zigak.files.wordpress.com/2009/08/100_53251.jpg)