Yeah, those caps are/were a big step backwards, IMO. The original Dvarw had none of the directional requirements that the FL imposed, and it made things go a lot easier. Other than the juice holes, which are self-explanatory as to location, you also have a very slight indentation under the caps edge, which aligns with the insulator side of the deck, and "slips under" the airflow insert screw. If it's not aligned and seated properly, you'll get a flooded deck every time, guaranteed.