measurements for open baffle with AMT tweeter, improvements?

Hi, im trying to finish my open baffle design. it uses FANE sovereign 12 full range driver and one AMT driver for upper frequencies reinforcement.
there is a sub woofer filling the bottom end. (it wasn't connected for the measurements)
im new to REW software and audio measurements. iv got these graphs. i think that the frq response is ok +- 5 db and the beaming frequencies from the AMT tweeter are expected.
am i correct? do i get good measurements? (EMM-6 microphone).
i reversed polarity for the AMT. it sounds better. what do you think?
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