In the first episode, we see the crew firing energy bursts instead of the familiar energy stream. IIRC, these weapons are phased (
) out of the show during the pilot episode, or soon thereafter. Why not keep the EM pistol
rather than immediately switch to the familiar phase pistol
Personally, I thought the idea of firing energy bursts was cool and helped distinguish the show from the other Treks. I wish they had continued as such for the rest of the series.