While we are on the topic, if someone had both a MW3 and MW4 which would you recommend to use as the UQ and TQ to get maximum warmth? I'm rather new to this - joined the hanging world this summer while on an AT section hike. I'd love to take my set-up into colder territory.
JRB No Sniveler and JRB Rocky Mtn No Sniveler, maybe a two ounce overstuff in the latter. I'm considering narrowing the footbox on my RM No Sniveler since, now that I have a MW4, I'll never use the RMNS as an UQ.