Food for thought = The actual coil wire is NOT always centered in a 510 cup, unlike a CE2 carto, having it run from corner to corner is not unusual as far as the coil wire, as long as it's in the cup that's all that matters and isn't your problem here. What you should do is give this Atty a little boost with some more power, running it on your Ego @ 3.4V just may not be enough oomph for this Atty.
Just because it is ( LR ) doesn't mean it is a 1.5ohm Atty, and most Atty''s are + or - .2 on ohms, so it all depends on the specs of this Atty manufacturer on exactly what ohm and what tolerance they build to, you may have purchased an LR Atty that was specked out at say 1.7ohm but it ended up at 1.9ohm and then your Ego @ 3.4v just isnt enough voltage to make that Atty kick .... and perform to its top performance. I would suggest if you have another Mod with an 18650 IMR Batt you try it on a full charge at 4.2v and see what happens, if you dont have one maybe you have a friend that does. I wouldn't mess with the wire Bridge anymore but just try it at a higher voltage and you may be very surprised at what happens with it's performance ! It's also a great idea to get yourself an inexpensive volt/ohm meter, they can be had for under $10 at DealExtreme and some other places, then you can ohm out your Atty's when they come and know exactly what ohm Atty you have and match it up accordingly to the proper voltages for top performance since you don't have a Variable Voltage mod to work with