Grado Signature Model 8 worth re-tip?

I have a couple of cartridges that I have had for many years that I never used and would like to send them for an inspection/re-tip if worthwhile?

One of them is a ’Joseph Grado Signature Model 8’

I have used SoundSmith before, but would like other suggestions for re-tippers.

Looking forward to reading your posts!

Rick