Dual Wield Trait + Haste

[Sappho]

Another reason which promotes Haste in favor of Dual Wield is the fact that Dual Wield will impair your TP gain. The TP/hit you get is based on your Delay, and while Haste doesn't modify your Delay, Dual Wield does. So the more Dual Wield you have, the less TP you get.

Excellent point.
I had forgotten about DW gimping TP gain per hit

Thanks all for the info.