I completed a run off between my existing winter setup comprising an Evernew 1L Pasta pot (90g + 22g lid = 112g) & the Oilcamp exchanger pot (202g + 32g lid = 234g); the hope being that with the claimed 30% improvement in efficiency it would allow more days on the hill in winter with a single tin of gas. For the testing I used my Kovea Spider stove complete with a windscreen inside the shed (ideal conditions). So as to make any differences more apparent I choose to run the tests with 800ml of chilled water (2.5C); all test used a Coleman C300 canister. The first 2 tests were completed with the canister upright (summer mode) & the second 2 test used the canister in winter mode (inverted). Test 1 – Olicamp (summer mode) boil time 7:45 with 12.4g of gas consumed. Test 2 – Evernew (summer mode) boil time 7:47 with 12.8g of gas consumed. Test 3 – Olicamp (winter mode) boil time 7:15 with 13.2g of gas consumed. Test 4 – Evernew (winter mode) boil time 7:15 with 13.1g of gas consumed. IMO the tests show that the Olicamp, when coupled with the Kovea Spider doesn’t offer any discernible improvement in boil time or gas consumption (any differences are well within measurement error). It may be that matching the pot with something like the Pocket Rocket may give a different result but my focus was on a winter setup (remote canister stove in inverted mode) & given that the pot is 122g heavier than my current setup I'll think I'll give it a miss.