Thoughts on my next project

Posting this here as it seemed to make the most sense.

I recently found a 1989 Korean "E-Series" Squier Strat for sale locally and cheap, and I snatched it up. It has a Floyd Rose trem (and locking nut, etc.). I've been wanting a super-Strat for a while, so this could be it. I'm planning a few changes but the bones (as they say) are good.

My idea is to make this something of a super-Strat Esquire, with just a bridge position humbucker, a volume control and a series/parallel switch as a pre-set tone control of sorts, for quick changes between something fatter and something airier. The pickup is a Seymour Duncan JB. From what I can tell, it seems like a good middle ground between a classic humbucker sound and something more shreddy, which is what I'm going for here.

My question is, what pot value would you use for the volume control? For a humbucker I'd typically think 500k. However, this guitar will have no tone control to tame any highs, single-pickup guitars seem to sound a little brighter than others, and my understanding is that the JB is a somewhat bright-sounding humbucker, which makes me think that 250k might be the ticket. Also, I'm not a fan of the volume control shaving off highs as you turn down, so if that happens to any noticeable degree I will be installing a treble bleed.

Don't get me wrong, I have both and I intend to try both out and use my ears to decide. I'm just curious what others' thought process on this might be.