The unofficial versions are published much more frequently and add enhancements . The enhancement can make the unofficial versions very useful. A very common enhancement is a system of annotations . After each statutory section, the publishing company lists cases which construe that section. If the section raises numerous issues, the cases are arranged by topic.
Annotations are an excellent way of researching the interplay between statutes and cases.
Those blurbs will refer to cases which have considered the definition issue, so you can peruse them for decisions referring to limited partnership interests. The blurbs will also give you a cite to the case, so you can limit your search to the appropriate circuit. The research project just described would take you about 15 minutes. Another enhancement is a cross-reference to the encyclopedias put out by the companies. E.g. USCA has references to CJS and USCS has references to AmJur.