I plan on doing new videos to demonstrate my kits being used just for an FYI. I want to get that done today so I will post a new thread once I have done so. Also, I have revamped the setup just a little bit. The pots now hold 1oz less of water (19oz total) to include a prototype lid that I have been working on. The lid is made of aluminum and is very very light.
To address your questions:
1)Pot Container- The container is made of High Density Polyethylene. Please read my thread about this material - it should answer all of your questions, but in short... boiling water is just fine inside HDPE. No it will not warp and food stuff is fine to put in it. It is, after all, a food grade container. :P
Here is the thread:
2)Container - I am not sure how much the bottom container holds, I will check into that and let you know. The 20oz refers to the amount the fosters pot can hold (which will be 19oz from now on (as mentioned above). I had not accounted for the container.
3)Handling- Personally, I use some little burn proof fingertips, one on the index, middle finger and one on the thumb, that I cut from larger gloves (to save weight of course). They are not "safe," but very manageable if one is careful enough. Unfortunately there is no way, that I could think of, to handle this pot without some sort of glove/flame retardant between it and your hand.
4)Small Windscreen - Part of my revamping (as mentioned above) was to get rid of the smaller windscreen entirely. I assembled it wrong in the video (I should not have put the lid for the stove on the bottom like I did) and that is why it looks like it is about to fall over. It would not be this way if the lid had not been on the bottom (it works just fine). I will demonstrate how to properly apply the small windscreen in my new video. There is nothing wrong with the smaller windscreen, but nobody has wanted one so I'm going by demand here! :)
Hope this answers all of your questions.
Neil- I'm still going to post videos of usage. Sorry for the delay.