Jerry - I think this is the answer to every issue I have with windscreens! I can think of a couple modifications (I hesitate to use the word improvement) for those of us with different size pots and pots that are smaller than the stoves pot rests:
1) slots on the bottom to rest on the stove rests for smaller pots. If you make a windscreen for each pot size, you can skip #2 below.
2) to hold handleless, smooth, or smaller pots when sitting it on the ground, cut for wide slots on the top, so it looks like a medievel castle. Then just put a "V" bend to the inside, where the slots are to form 4 pot rests.
The friction of the windscreen will keep it on the pot (that part is brilliant!) and the post rests keep the pot from slipping down when put on the ground.
Finally! I'm going to have windscreens!