I don't know the vintage of your wheels, but back when Open Pros were in production the SSC designation meant Service Speciale Course" (special service for racing) and were sold at a premium over the standard model. Some were also identifiable by a blue anodizing. It's been a while and I forget if the difference was the alloy, heat treat, or extra care in production (or all three or just pure marketing).
I had a pair of SSC tubular rims for a long time, and remember they built up nicely and held up very well (or at least until the next rain filled pothole - my lifelong nemesis).
True them up, and if the hubs are in good shape you've something you'll enjoy for years.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.