I would group, but everyone's either leveling a new twinked alt or just refuse to have a ranger with them, thus the ''solo'' part...
That also ties together with my questions about any possibilities of ''slight balancing'' improvements above ;)

Seeing if i can get some RL friends to join to make a group with though.

Not true. I've grouped with untwinked rangers.

I can't speak for the untwinked rangers, but as a twinked ranger my choice is usually either slow experience solo or LFG for a couple hours before logging out. Pretty easy choice for me.

Edit: Most interesting part? It's possible to level the entire way in the Karanas.