Two things. For my fellow Vets, I applaud, congratulate, and thank you for your service. I am USAF Retired (20 years, 3 months, 9 days of service). Worst decision: Retiring from a service and job I loved. I listened to the Ex, bad ju-ju, now water under the bridge. To my Navy bretheren who are suffering, my thoughts and prayers will be with you. That's a promise.
As for the drain plug. I have had a Fumoto on my 2003 for about 6 years and love it. Never thought of the clamp idea but it would be a great piece of mind addition. I bought the Fumoto from Geno's and it is the one with the nipple. I then bought a (forgot the length) piece of clear tubing that I slide over the nipple prior to opening the drain. I love the whole "no mess" thing! As a side job, I work on vehicles and about 10 days ago, I had a brand new Duramax in for an oil change. Instead of the oil coming out as a stream, it came out as a "fan" and went everywhere including on me. I was not happy. The plug on the D-Max is no longer in the middle of the rear of the pan, it is now in the left (drivers side) rear corner of the pan.