Zu DruidV's has anybody heard them?

Phil, long time no hear, 'no hear' being the operative phrase! Clear inner ears and sinuses are probably the greatest upgrade of all, don't you think? I mean what would you rather have, your hearing back, or a new component right now?
Please forward your findings on cap upgrades to the Def 4 tweeters in due course. It seems Sean at Zu is soon to offer choice of caps as upgrade options in future. As of present I'm investigating Duelund Cu VSF or CAST options. Would love your considered opinions.

Yes, Phil, if your hearing has returned. Can you confirm that the Zu Def4s, which share the same Radian tweeter, will benefit from the same cap upgrade that you deem works in the Druid. Or if this not likely to be the case.

Interesting that the recent 6Moons preview of the Druid Vs mentioned that in conjunction with the Submission sub, they possibly outperform the Def4s. Most interested in Phil's take on this. Personally I couldn't be more happy with my 4s.