I'm not using anything different than what you have listed. Well, my Nalgene is not the hard plastic, so perhaps I too am using the HDPE... And we do just use the 32 oz and those are the bottles in which we keep our water.
After a couple years with the Adventurer, I did kind of unlearn one aspect, though. After pushing the button once and having the green light come on, I was hurrying it into the water. Once the button is pushed the green light comes on solid and takes a short moment before it starts blinking.
You want to wait until it's blinking to put it in the water.
I think the thing is great. The next trip will no doubt have very low temps, though, where we've got to pocket it or the batteries to have it (the Adventurer) be warm enough...