Further to my request of a few years back, I've recently discovered that the full transcripts of the Crosthwaite Registers 1562-1812 are now available free online on familysearch.org . Just use the Search drop-down menu to search for a Book, and search for "Registers of Crosthwaite". They are in 4 volumes (printed in around 1930), with Indexes for both Names and Places, and you can either read them online or even download them to your own computer to browse at leisure. The transcriptions look very carefully done, so though I suppose there could be a few cases in which you'd want to check with a film of the original registers - or even the original register itself, generally they are much easier to use than the originals.
So my new question is: does anyone know of an easy way to find out which parish registers have been transcribed and printed in this way?