There's not only output but tone to consider. I'm not really a fan of hot or even medium hot output humbuckers as they always sound rather muddy and less dynamic to me than PAF style pickups.

I set up an ES-1 which had been fitted with the Tonerider AC4 pickups. They were certainly as hot as I would like to go for general playing, but still retained a good level of dynamics. My personal low-cost favourites are Iron Gear Blues Engines. I've tried a couple of SD JB pickups, but didn't like them at all and replaced them with less powerful units. I've got Bare Knuckle Mules in my main LP and they are on the slightly hotter PAF side, but are still nice sounding.

I do have a Kent Armstrong M-Bucker Hot pickup fitted in an Ibanez RG, and that's about as extreme as you can get for a passive pickup (27k DCR - though a lot of that is due to the thin wire required to wind four coils that fit in a humbucker package). I don't like it TBH, but it (and it's installation) was a birthday present from a mate (it was basically his pickup design that he got KA to make for him and then KA put it into production).

So many things to consider when selecting pickups, and so much you can only take on trust or someone else's description.

So maybe best to describe what sort of music you normally play and what your custom pickups are and how they are specced in order to get an idea of what 'a little too hot' is.