[GEAR] Pickup Suggestion for a thrash metal album

So I'm mostly done writing this thrash metal album I'm gonna be recording. The guitar I'm gonna be using to record it is a Jackson KV1 (alder body, maple neck thru neck, fixed bridge, ebony fingerboard)

I need the perfect bridge pickup for slammin' thrash riffs. It has a Seymour Duncan JB right now, and I actually quite like it, but seeing as my main influence for this album is Megadeth, and I already play a lot like Dave Mustaine, I would like a pickup that can give me a similarly described tone, but I just want something a little different from him. something I can call my own.

So I'm gonna try and use words to describe the tone I want, I guess, see if you guys can help me.

It has to be passive. Active pickup will not have the growl and rawness I require for this project. There are a lot of parts where the rhythm guitar is playing by itself. I consider these parts just as important as a guitar solo, and the tone needs to be AWESOME. Bleeding with character. It needs to have a ferocious growl, and feel like a punch to the face when I slam a power chord, but I don't want a mega hot pickup like an Invader or anything like that. Ceramic pickups aren't out of the question , but I do find that they start losing character versus alnico especially on the hotter ones..

Also of note, my other major influence is actually Guns N Roses (my favorite band of all time) - and I've been a long time user of vintage PAF pickups in the neck so if that helps, it's going to be paired with an Alnico 2 Pro in the neck

so if you're still with me(I am long winded AF I know.), got any suggestions? I am partial to Seymour Duncan for passives..

In fact I've been kinda leaning towards a Seymour Duncan Custom. Which I've never tried before, and might be the most similar to the JB's growl but with a bit of a different character ?

but I'll try something else if you guys think it's really what I need. Thanks in advance for any advice.

Old poopy demos of some of the songs. First one was written by my bestie, second one was written by me all lead guitars are me https://youtu.be/iWb3yNq4w8M https://youtu.be/khxXahqar7g