I've just about finished this.
I think it fair to point out that for 38a the answer to the clue is a word for wax around EP rather than PE; this is before it is thematically altered for entry. I think it is unfair that the clue does not indicate that the letters should be thus reversed.
I found the method of entry early on so I haven't bothered with the extra letters in the down clues and there are a number of clues I cannot parse anyway.
Finally, I think the title of the puzzle should be Law and not Rule.