Pastorkhris, I received your question via PM this morning, and I hope you don't mind -- I elected to answer here as I thought it a question others might have as well. His question was: How much containment does the Muzzy provide?

Without pushing the arrow into the little rubber arrow holder which Muzzy provides -- which you can see affixed on my shelf in one of the pics -- you can turn the bow exactly horizontal and not have the arrow fall out of the rest; in other words, the hook will hold the arrow all the way until the point of the bow starting to turn upside down.

Now, if you were to push the arrow into the rubber holder device, you can flip your bow 360 degrees around and the arrow won't budge. Upon drawing the bow, the rest arm will gently pick the arrow up and out of the holder with complete silence.

Unless you plan on hunting upside down, you can pretty much be guaranteed that this rest will pick up your arrow and position it properly for your shot! If you do want to hunt upside down, just be sure and push the arrow into the rubber holder, and you'll be good to go.