CV joint, replace?

I’m replacing the bearings on my swivels right now. I took a look at the CV joints and while they seem okay the grease is pretty terrible and it’s got that orange brown indicating some rusting. Should I just clean it out and pack new grease or should I replace them? I’m putting through a Paddocks order anyway.

Wash out the old grease and get it clean. Then move it around in your hands feeling for any roughness, if smooth good to go. Also check condition of splines.

Thanks. That sounds like a plan and might save me £70.