I'm more of WvW player as well, but now I can't 3 blasts from inventory as Firebrand without a new template (if you have a legendary weapon in the rotation of 2 Staff => 2 Hammer => 5 Focus => Staff, instead of going back to inventory and replace the weapon used to blast it will just go inside armory in blank state)
I'm already using 6 templates on guardian (pve/wvw/roaming/heal/condi/power...) so i can't easily do it and that's annoying, like some said above I made an ascended staff instead of using my legendary one