For all intents and purposes, you've got a classic triple convertible lens, very much like a Zeiss Protar ( if anybody cares what the difference is, look in Rudolph Kingslake's "The History of the Photographic Lens" ). Weston used one like yours for years.
The individual cells were conceived as the equivalent of a full rapid rectilinear. Using them in a group fully corrects the combination. But the individual cells are capable of pretty good work - if you think Adams and Weston could make good pictures -
For current tastes, adding a medium yellow, 'minus blue', or even an orange filter to an individual cell will snap the image up because it filters out the blue light to which the lens was not fully corrected. But you probably won't find any problems with the lens ! AND please note that when you use a single cell, you MUST mount it in the rear of the shutter, so the diaphragm is in front of the lens.
There is one caveat. The little shop in Fariport NY made a lot of lenses on government contracts. Sometimes the quality control was spotty. Sometimes, the 5 element cells were not centered perfectly. If you make contact prints or small enlargements, you will never know if you have a 'problem lens'. And if you HAVE a problem lens, love it, and want the problem to go away, there are a couple fellows in the US who are very adept at decementing and recentering lenses.
One of the favorite lenses for 8x10 portraiture is the 19"; whether an artar or cell from a convertible, it is a 'just right' balance of image size, working distance and camera extension. Use the thing fearlessly and have fun.