Not important to me, at all.Years ago I lived in a wooden house that was right beside a trolley bus line, and it was nearly impossible to record, in that specific place, with single coil pickups, because of the high level of electrical noise.
To fix the problem, I developed a passive device (an open air antenna coil mounted in the control cavity), which eliminated the problem and saved myself from having to switch pickups to stacked humbuckers, which I don't really like, and saved myself some money too.
A while ago, I put up an internet site, and started selling some of these devices, which I build by hand, and I was surprised to find that, apart some top-level guys, I didn't get much response.
So I'm wondering if not enough people really care about removing hum from a classic Strat or, do I need to invest in some serious marketing campaign, to create awareness?
I apologise if this is not the right place to ask.
Your idea sounds a lot like the dummy coil method that has been done before - apologies if that's not the case.