First, I would contact Zu to see if they can update your Druids, it may be more cost effective. I usually deal with Gerrit. He is very accessible and may have some opinions regarding the Totem's vs. the Druid with upgrades.
I own the Union's, and am very happy with them. I will be sending them in for some minor repair and small upgrades soon. The prices quoted were very reasonable.
I have no experience with the Totem Forest's, but if you think they are what you want, then go for it. But, remember, the Totem's have a lower sensitivity than the Zu's. Is your friend's system somewhat close to your's?
I own the Union's, and am very happy with them. I will be sending them in for some minor repair and small upgrades soon. The prices quoted were very reasonable.
I have no experience with the Totem Forest's, but if you think they are what you want, then go for it. But, remember, the Totem's have a lower sensitivity than the Zu's. Is your friend's system somewhat close to your's?