Joe, there's a problem with your map. From the way it looks, the jump nodes seem like they are outside their respective solar systems. Although it's a fun idea, a gravitational "intersection" in interstellar space (the space between star systems) is NOT where nodes form; all the nodes in FS1 and 2 have only been seen to form INSIDE a solar system, namely within a few Astronomical Units(AU) of a particular star. (1 AU = distance from the Sun to Earth's orbit, BTW)
Your map seems like these nodes would appear several light-years away from a star, making it useless to jump ships. Subspace jump technology only works for jumping within a solar system or from one solar system to another, NOT into the vast space BETWEEN solar systems.
Jump nodes only form near stars, even in the case of the FS2 nebula; you can see a star in some of the nebula missions. I've never heard of a node that forms in the space outside of a solar system.

------------------
FRED Zone's Grammar editor/ FS history moderator
Former member of TCA
Member in good standing of 99th Skulls
Honorary member of TCS and UGC
"I created your civilization...now I will destroy it!"
--Ra, the Sun God