Unlike other line spoolers, these line spooler tools allow the line to unroll from the filler spool and directly to the reel without any line twist
If you want an all-around rod to cover some of the "bonus" species you might encounter in Brazil or Bolivia such as pacu, arowana, yatorana, and more, a fast-action 8-weight is ideal
The Osprey Sirrus 24L pack is made primarily from recycled nylon, which makes it an extremely durable hiking backpack
Ultimately, what OPs asking is a very specific question needing answers from people who have genuine experience with the various challenges that come with a large and young family and for which there are genuine ultralight "paradigms" (in OPs words) that are useful here, but for which the standard weight-only focus is not the best, as there are some specific things that come with kids and large families that need to be taken into account, especially when you have two kids 5 and 7
If you want a hybrid profile, check out the Burton Custom Fying V The on snow feel for this board is locked-in and aggressive