To me there’s no comparison between those two jackets for that time a year. Jetstream all the way.
Agreed! Sold my guide jacket because of this very reason. I now own two jetstreams. One for hunting and one for around town. For a puffy in late October - November I use the LPP. It is very warm and also very durable. The Kuiu superdown and Sitka Kelvin aren’t even in the same class. I get good discounts from both Sitka and Kuiu and I still bit the bullet on the LPP. I can’t put a price tag on being able to stay warm while glassing during the later rifle seasons. Negative temperatures can be brutal while immobile.