I decided to create a new thread: alternatives to the JetBoil Stash. Pithawat V wished to try out the with a Soto WindMaster with a WideSea HX pot. I happened to have both items on hand and volunteered to collect some test data
Sea to Summit pot combo – 8.5 oz (it comes with a 3.4 oz frypan/pot for a lid)
Pot alone – 5.1 oz
Plastic lid (1 quart yogurt lid) – 0.3 oz
(Reference Stash – pot & lid 5.2 oz)


Fuel needed to boil 500 ml of 63F water – 6.5 grams (calm conditions) [Stash~5 grams]
Brought 500 ml of 63 F water to 175 Fin 8 minutes consuming 23.8 grams of fuel (8mph wind)

Calm conditions

8 mph wind
Note: not great but the Stash cannot boil water above 5 mph
Opinion
The fuel consumption in calm conditions is not as good as the JetBoil Stash. This is to be expected as the stove to bottom of the pot cannot be optimized due to the flux ring geometry. Slight gains may be realized by turning the power down even further.
Performance in the wind is far superior. I would speculate that the Widesea/Soto system performance at an 8 mph wind was on par with the JetBoil stash at 5 mph wind. That being said, both systems would benefit from a windscreen.
Conclusion
Overall, the performance of the WideSea/Soto combination is equal to or better than the JetBoil Stash. Assuming that you can find an appropriate lid, the system is extremely cost effective. The total list price was $82.04 compared to the Stash at $129.95 or 37% savings.


