Splicing the main brace was a reference to fixing the main brace of the sail that had broken, usually in a storm or battle. It was hard and dangerous work to splice ropes, some up to 5 inches in diameter, in such a situation. It became typical to reward the sailors with an extra grog ration.

In today's Navy it refers to an opportunity to get a drink. "I'm going ashore to splice the main brace."

Brace yourself in place and splice away.

The main ground should not have a splice to ensure continuity of the ground. The reality is that this is done in some cases. If the splice should loosen or be intermittent you will create a shock hazard.

The main health benefit of using a tennis elbow brace is that is offers support and protection to the elbow area. These braces often offer compression to the area.

The main advantage is that the patient may not need to wear a cast or brace after the procedure.