Neat, ZayaReviews just added a whole bunch of Grados to their database.
https://www.zayareviews.com/
I recommend the Grado crowd here add some reviews/ratings over there. That site is looking promising for the headphone world.
(
Note: I have no association to that website. I just really like the design and the fact that it was built to be like the RottenTomatoes for headphones. And their database had virtually no Grados since the site is brand new, so I messaged the guy and he just added about half the Grado lineup. This is looking like it could end up being a great headphone resource.)