Careful inspection for minor surface imperfections. If any catch your fingernail (high precision instrument) just blend them into the casting with a fine stone until you can't feel it. Especially careful of lower surface of valve-side lever.
Any sign of relieving, machining for spring or retainer OD?
If you're really nervous, cryo treatment may make you feel better.
Yes, I'd run them.


Boffin Emeritus