Depends on which version you use.
I suppose the transcripts published by the IoM FHS are probably tertiary documents in that I suspect they were made from the "Official Copy". There is no indication in the transcripts as to which version was used. I hope future publications of the FHS make it absoulutely clear the source.

The films of the "Official Copy" of 1910 are strictly speaking secondary documents.

The films of the original Parish Registers are the primary documents.