New hard INQ on EX (4 --> 5, 4 of which are < 1 yr old) cost 7 points (821 --> 814).
I added a HELoan in June and a card in March of this year.
I'll be able to find out (for free) the impact on the other scores (848, 832) in a week.
We'll see what happens in April, when scoreable INQs fall back to 3.
Happy New Year, all y'all. 
My Experian FICO 8 dropped 7 points yesterday, from 777 to 770, after a HP from Amex.
It hasn't shown up yet on MyFICO, but I saw it on the Experian website.
I was 1/6, 2/12 inquiries on Ex. Now 2/6, 3/12. In May, I'll be 2/6, 2/12 (if I don't apply for anything else).
EQ8 781, TU8 755, EX8 761 as of September 29
@expatCanuck wrote:New hard INQ on EX (4 --> 5, 4 of which are < 1 yr old) cost 7 points (821 --> 814).
I added a HELoan in June and a card in March of this year.
I'll be able to find out (for free) the impact on the other scores (848, 832) in a week.
We'll see what happens in April, when scoreable INQs fall back to 3.
Happy New Year, all y'all.
This suggests that 5 inquiries is a threshold, which is confirmed by my experience of gaining points when my EX inquiries dropped from 6 to 5.
Unfortunately, I think 3 is the bottom rung of that bin, so that your dropping to 3 in April could well be a non-event, and you would have to wait until you drop to 2 to see a point gain.
Now I'm not so sure about the 3-5 bin. I just gained 7 points in EX FICO 8 from my scorable inquiries dropping from 4 to 3.