IIRC...higher speed travel between bases is OK in F&E.....and shadow used it for SFCoC....but only between bases....and the ships had to "rest" for one turn after such a high speed run...for maintanence...
The theory being these transit lanes are well traveled and free of navigational hazards...
Placing a picket ship in the lane counters this IIRC...
I have Shadow's rules for SFCoC somewhere in hard copy...I'll dig em out if you think they are any help...
But I'm not sure how you would simulate this on a dyna...