2. Is the SSR Gun with Double Attack/HP complete garbage? Or is there some worth getting it for future FLB?
I'm sorta maining Wind and Water so it's important to me to get any potential usefulness, but I still want to skip complete trash.
If you really do want to get any potential usefulness, then you DO NOT skip anything, even trash. Because trash eido can be turn into orb, and trash weapon can be used as skill lvl fodder (SKill lvling is extremely expensive especially after FLB).
And "not it's not my main element" is not an excuse, eventually you will need 6 developed teams for 6 elements, dont skip anything you might need later on