Enhancement hybrid weapon imbues and trinket
So I've decided to off spec my enhancement shammy to hybrid. I use a mix of mainly regular pvp enhance gear with spell power offset and lk25 hc spell power mace. Now I'm curious to figure out what the best trinket besides medaillon would be in duels, since that's the only thing I do. I feel like Skeleton key is too much of a cheese trinket in duels, but I don't know what else would work best. I'm currently running about 18% haste + haste totem, 0 arp. Soon I'll run a bit more haste though. Also I'm using wf/fb, but I'm not sure if that's the way to go. I also don't know if it's worth it to still use arp, that's why the 0% atm.
So in short: what would you recommend for weapon imbues, secondary trinket and arp %?
If you want to look me up on armory to get an idea if my current gear, I'm called Knigward on Icecrown.