Set it to 1280 x 480 and set your fps to 120
That will give you two cams in a row running at about 60 frames each. DO you mind telling me what cams you are running. Dont forget you must double your width if you are running your cams side by side but you keep your height the same. In you are running cameras in rows , one over the other you must leave the width the same and double your height. Also if each cam supports 6o frames you must double your framerate. \
For us we are running 4 cams in a row side by side. they run at 640x 480, so we need to do Width x Number of cameras and keep the height the same. 2560 x 480 and our frame rate is set the same way , FPS x Number of cams. 240 FPS
Hope that helps.
BTW All our camers stitched WONDERFULL… Very very elegant solution.. AMAZING work ANAT!!!!