Drills along a known spike drive route have no chance
of failure so long as the route is no longer than twice the operating
pilot’s skill level and does not involve course trimming. Thus, a
navigator with Pilot-1 skill would always succeed in making a drill of
two hexes or less, provided the route was a known one. The drill course
regulator requires a sophisticated technical base and compatible
metadimensional energy conditions in a given sector; many sectors no
longer have this technology or lack the right environment to use it. If
the GM prefers a campaign where space travel is always at least somewhat
dangerous, they may deny access to this fitting. Ships piloted by
exceptionally talented navigators may choose not to mount it even then.
Drill course regulator
Ship Fitting