I did a couple of practice hikes and on the last one I took the Sawyer bladder and it's drinking tube with me. I confirmed a major flaw with the drinking tube. The tube that I got wasn't the clear type but blue. Instead of the tube to go over the fitting of the quick release L, they had a short piece of clear tubing that went over the fitting. The blue tube was just slid under the clear tubing and "secured" with a Ziploc tie. It could easily be pulled out and it slowly leaked there.

I took off the clear tubing and pushed the blue drinking tube directly on the quick release fitting. It's pretty tight on it even without a Ziploc tie and should work for my 3 day hike this weekend.
_________________________
Please feel free to disregard my opinion.
http://adventurelaus.blogspot.com