Originally Posted by jrtens
There is quite a difference between an E-AB RV-12 and an ELSA RV-12. Most RV-12s are ELSA. Is that what you mean?
Most are built exactly to plan, and then certified for airworthiness. Which is my understanding what makes them Experimental Light Sport Aircraft.
Experiment Amateur Build, the builder can make all kinds of modifications in the build, such that the plane is a one off, or a custom build, that only the builder knows everything on what was put into it, changes made, modifications that occurred during the build, before the plane was certified.
The second owner might not know what to check during annuals if they buy an E-AB build, there aren't exactly blueprints for everything in the build, before it's certified.
You buy a E-LSA and if you get the blueprints that came with the plane, it should be exactly built to the plans. You get a known quantity with an E -LSA. You don't know everything you are getting with a E-AB build. Perhaps, that's why it takes a more experienced A&P to do your annuals on a E-AB.
I would think that talking with someone smart and knowledgeable at your local EAA chapter could help sort things out better on the differences.