I compleely agree with "all 760's aren't equal".
I never had a credit history at all until 2013. I disocvered that I was never going to achieve anything financially if I didn't start building. So in 4 years I reached a (771 FICO avg), mixing 3 credit sources (Visa, MC & Disco) and a couple installment loans to get that credit mix. Took out my first auto loan in 2017 and dropped to about 720 (but I have a sick 3.4% rate on my truck).
Then in March 2018, I app'ed for 4 CC's. And I did this for one major reason.....well, two reasons.
1) I needed more credit sources in my mix and I am a huge believer in cashback cards. Yes sir, I would very much like to have the money back that I spent so I can spend it again, thank you.
2) I app'ed for all 4 CC's in a one-day spree (and these were meticulously chosen to spread the INQ's across different bureaus) - In order to keep the AAoA in a cluster.
My credit scores dropped to about 668 before they started to recover ( because I did add some balance to these 0%-15 months promos, why not?)
Now, after 7 years of credit history, I have a current truck loan, 2 closed installment loans, and 7 revolving CC's (all high % cashback cards, except for my pop-my-cherry CC through my local bank). My AAoA is 2 yrs 7 mths and my oldest is obviously 7 years.
And some people may go **bleep**, you just killed your AAoA with those 4 cards, but......all of those cards will age together. Think about 4 years from now when my AAoA is about 5 years aross the board, oldest 10.
But in August this year (2020) I'll be adding a mortgage loan, so who knows what that will do. But at least I will have a 760+ to apply for the loan. That's all I need for the %rate. Then I will rebuild again.