FYI I initially had issues with filament dragging badly from the seam (and before the peanut gallery weights in, no I don't need to dry the filament as I already did).
I switched to Arachne wall generation and also inner/outer/inner wall generation sequence and the problem went away with the same role of Bambu Lab green PETG.
Question - what toothpicks did you use for yours? I have normal toothpicks in the house but they aren't big enough for the notched ammo holder. they fire fine though.