Yep, wot Telerocker and Dave Sloven said :)
I've got HSP90 MQs and P90 Blue Notes.
I got the MQs years ago, they were my first P90 types, and I struggled to understand how to use them (as opposed to humbuckers and strat/tele singles) to get "classic sounds".
I have quite a few P90 guitars now, not all BKP'd. It was getting Blue Notes into a SG Special and a Feline Double Cut junior-type (both all mahogany) the showed me the "sound" I was imagining for a P90.
The MQs are very cool - and I like them very much now I've decoded "P90" - but I think, yes, too aggressive for what you describe.