If using the rubber strap as shown in the image below on the Titanium Cone will rectify this issue with the pot falling through the cone, however as I mentioned before with the rubber strap attached the pot will not fit into the Caddy.
You could do away with the Caddy as some do, this will give you a very lightweight cooking system, less than 100grams, so long your careful how you pack the beer can pot. I prefer to use the Caddy myself, as I can get 3 functions out of the Caddy, Not only is it great to store the cooking kit, it can by used as a cup and bowl.
Pictured below I've shown a Pot Lid with a nice handle, I purchased from Mini bull designs in the states. the handle stays cool to the touch, making it easy to remove the lid. With the beer can pot lid supplied with the cooking system, I've had to use my pocket knife to remove the pot lid, however I've gone back to using the supplied lid as the mini bull designs lid don't fit into the caddy as the original lid. That wooden knob stick out to far.

I know, I'm nit picking, but I have to find something to write about. So I'm giving this a very comprehensive review. I can only find very minor things to complain about in regards to the TrailDesigns Cooking System.