The police can already see how much you have used your rifles by the ammunition information recorded on your certificate at the time of purchase. Where, when and at what you used them is not of any interest to them unless you operated outside the terms of your individual certificate. And you are hardly likely to record that even if you did do it - Which, of course, you haven't.
Some of these 'police' guys just make up the rules as they go along.
Over the years, I am very old, I have mentored a few newcomers to our activities. After listening to some of their comments, I started attending the initial visits by the 'police' when they apply for the grant of an FAC. They, the 'police', are not told that I am coming - I just happen to be there. It does seem to keep the conversations on a meaningful and legal path. I always keep absolutely silent, make the tea or something, unless some sort of irregularity enters the discussions or the applicant is asked something he/she can't answer due to lack of experience or knowledge.
On the last occasion, when a .17 was suggested as a starter rifle instead of the .223 that had been requested, the reasons given were sensible and very well explained. I then intervened and asked it a sensible time period for this 'probationary' period could be entered into the records of the meeting, and added that I would lend my .17HMR to the applicant immediately on issue of her certificate. This was agreed and we are proceeding nicely.
There is nothing in any regulations that I have read to say that you can't have an adviser along at the FAO visits. Most police forces seem to favour mentors.
I only do stalking type of shooting, not rifle clubs, where the regulations are different.