Brake caliper piston wear

[steve_uvs]

Hi all happy new year!

as ive had a couple of weeks off holiday i thought id rebuild my abused and ill maintained wilwood dynalites. So i bought some new seals and removed the first piston and its got a few score marks on it (see picture). Now the calipers sealed fine before but i dont want to put them back together only for them to leak, but at the same time the pistons are a tenner each so i dont want to be changing something that is ok.
So...what does everyone think?

piston.jpg

photo bucket - http://i629.photobucket.com/albums/u...ps9e3f7df6.jpg

[16v_paddy]

As I'm lazy & would prefer to avoid having to re-do rather than save some money I'd just bite the bullet & buy the new pistons. I'd be bitching & moaning about spending the money of course but deep down I'd be more bothered/happy that I'd not need to do the same job twice