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There is never a certain number of strokes, that all depends on the razor (steel and condition).
It is always advisable to send your first razor to be honed pro, and pick up a practice razor to...

I check the progress after each stage with a scope, but one can do TPT as another reliable test. @ 4k the razor should be able to cut hairs above skin level as well.
After 8k , the shave test is...

4k with slurry then rinse off and hone with no slurry before you get to the 8k

@ OP
right now I feel you have a bit of a mix of all kinds of factors that play into your honing.
You need to sort...

You probably do need a 1k to set bevels. You can use the 4k but it will take longer compared.
Before you start the pyramid you need to make sure the bevel is set correctly, then do the pyramid....

So you do not have a 1k stone?

irrelevant.

Lets start from the beginning.
What razor are you honing? Vintage, new, what condition?
What stones do you use more specifically your 1k, and what is your honing process?