Hello, Just got my first boat a couple of months ago, and I always amazed how good you guys are at this. Just want to be extra cautious and make sure nothing small turns into a much bigger issue so I figured I'd ask. After loading the boat onto the trailer after being on the lake, I was removing the plug and noticed on the gimbal housing this screw or zirk with grease around it. I have never noticed it before and was just wondering if it is normal? I would think there should be some type of cover on it or something. Looked everywhere and found nothing. I attached an image below. Thoughts???