eARC ebooks are Baen's business approach to releasing advanced book copy to the readers prior to publishing.
An eARC is an electronic Advance Reader Copy. This is an unproofed manuscript and is guaranteed to be full of typos and error. It is pretty much raw from the authors word processor. But you get the entire eARC well in advance of even the Monthly Baen Bundle release.
Is there any information about how different the eARC versions are, on average, from final published Baen books? If possible, I'm seeking a study across many different eARCs that did detailed analysis, as opposed to personal impressions.
Reason for asking: sometimes I have a chance to read an eARC of a book I eagerly anticipate, but worry that I will not be able to afford the time to re-read the published one later on - so if eARC is materially worse, it's better to be patient and wait till the final version is sold.