Loose pussy sizing guide

i’m new here and just checked out the sizing guide in the wiki. i think my pussy is at an 8. I can take a fist in duck pretty easily but i can’t take a the knuckles of clenched fist, so definitely not a 9. I haven’t tried 10, but I can take didlos over 4”(actually I prefer them 3.8"-4.25”) so is that 11?

So my question is how loose am I really if I had to rate it on the scale 8.5 or a different type of 9?