Well.. for what it's worth (500k ish I remember) the circlet from the castles gives you a whopping 4 seconds of increased resistance to shock. Very misleading; title states "Immunity" and the tooltip states "Resistance". It's either/or... not both.
And 4 seconds of the buff with around 2 minute recharge. When would I feel like using that? Pointless in PVP as stun attacks are way quicker on the reload time.
My Aden circlet give me immunity to stun for 7 secs, hah, much longer!! :lol: But seriously, it doesn't last long enough. 30 sec would be more appropriate.