I am stacking engineer from LC. Attachment is report about thickness detail study .As you suggest , we discuss it internally and thought that the gap for lcm is already limited . Consideration test , we suggest maintain current size.In order to minimize the thickness , we modify the main FPC location which is change between battery and LG pay to the same layer with LG pay , and adjust LG pay location.In order to achieve target , we reduce support metal and activate space thickness.Waiting for your kindly review and reply.