Without good RD faction it saves a little time on the trip from Fenris to Somerled. (you can go to Paramis, then BBW, then Inverness, to get to New Edinburgh, rather than Jot, Freya, Saturn, Glenn, & Carpenter to get there all except Carp are fairly big trips between gates you do have to be careful at Inverness gate) If you have good RD faction then it saves plenty of time.
Bad RD Faction. Somerled to Fenris
Somerled > New Edinburgh > Glenn > Saturn > Akeron's Gate > Freya > Jotenheim > Odin Rex > Odin's Belt > Muspelheim > Aragoth Prime > Valkrye Twins > Fenris > Fenris Prime Observatory.
Good RD Faction Somerled to Fenris.
Somerled > New Edinburgh > Inverness > Smuggler's Run > Muspelheim > Aragoth Prime > Valkrye Twins > Fenris > Fenris Prime Observatory.
(in the reverse if you have good RD to go from Fenris to Somerled.)
I would think that if you have good RD it would save plenty of time. The problem at this time, without the job terminals, is getting your RD faction up, without hurting yourself with other factions. Particularily the 9 playable classes. The way back in live to do it fastest, was to job your PW and PE until they were maxed, say doing jobs between Endriago and Tarsis. Then go to the Nav Construct Area, in Primus, and kill the low level drones by the hundreds, keeping an eye on your Sentinel/Warrior faction, and jobbing again until they were up. When RD reached +2000 you could use their gates. My Progen Sentinel got into BBW this way, at a relatively low level, even at Sunset, she could really just use it for shortcut purposes as her shelds/guns weren't big enough to handle the L48-L56 Manes guarding the best orefields, nor was her reactor strong enough to mine there effectively.
I agree that lower level trade runs that are short distances will produce money relatively fast, however, as your TL goes up, you should go to bigger runs for more Trade XP per good. IMO, start with the paper route between N7 and F7, when the experience starts to fall off noticably, switch to the Spice Run between Somerled & Prasad, and after around TL35 or so, Fenris-Somerled. (Your mileage may vary, as I think chars that can negotiate, get good XP out of those trade runs for longer, they definitely get more profits),