Thanks for the responses. I'll post an update once I get a chance to finish the windscreen that I had in mind for this stove.
Dan, the pot is elevated above the ground 3.5", and it's 1.25" above the stove. The requirement for the stove to be elevated about 1" on its own little stand is one of the shortcomings of this design, I think. It pushes the pot up and requires a taller windscreen.
Louis, so far the silicone seems to be holding up. I added it as a precaution, but I'm not sure that it was actually necessary. The aluminum surfaces at the junction of the inner and outer parts of the stove are smooth, and they are crimped together pretty tightly. Besides that, the silicone at the bottom, that protects against leakage of liquid fuel, never gets hotter than the temperature of boiling alcohol, which is either 150F or 175F depending on the type (methanol or ethanol), and lower than that in the mountains. The silicone I used should tolerate temperatures approaching 800F (and higher for brief periods). That's high enough to anneal the aluminum of the stove, and much higher than normal operating temperatures, even right around the jets.