Both the Miflex and Duelunds copper foil are great bypass caps,
The JB caps mainly improve clarity and soundstage precision without affecting tone.
The Gen 3 Sonicaps were similar, but offered a slightly wider soundstage.
The Duelund JDM Pure copper and Miflex caps are both going to add a little extra richness/warmth to the tweeter circuit, and I find that they tend to give a fair bit of width to the soundstage, but their oil-damped nature means they need 400-500hrs of burn in time.
If the Duelund caps are still on sale, I would jump on those, otherwise i would go with the Miflex KPCU03 (250V) as bypass.
I was near your neck of the woods over the last week, back in Texas now though.