A welcome return to the Mobius Sector !
Since you have been in the void for some time, I should inform you of the "FSD V1" module that you can get from the Human Technology Broker -
This module is a Class 5A "Doubled Engineered" Frame Ship Drive with the ability for you to add an Engineered Effect e.g. "Mass Manager" onto it increasing its Optimal Mass Multiplier of 1862 ( as opposed to 1682 ) and furthering your Jump Distance considerably.
You trade Materials for the item and not credits, while Elite calls it an "Unlock" it is infact a "trade for", as you keep having to trade materials for it - each time..
FSD V1 Material Cost
- 26x Tellurium
26x Electrochemical Arrays
28x Chemical Processors
18x Datamined Wake Exceptions
So how much better is the FSD V1?
So with an identical Basic specification of Asp Explorer, no other Engineering but has a 5H Guardian FSD Booster
Engineered with Felicity Farseer
- 68.37 Light Years - FSD V1 + Mass Manager [**]
63.10 Light Years - Class 5 FSD - Grade 5 Long Range + Mass Manager
Engineered for Deep Space -
- 70.75 Light Years - FSD V1 + Mass Manager
65.27 Light Years - Class 5 FSD - Grade 5 Long Range + Mass Manager
Of course there are better Deep Exploration builds - these posted here are to highlight the difference between the two modules - which is about 9.5% better, reboots substantially faster afetr a power cycle and only needs Access to Grade 1 Felecity to add "Mass Manger" effect.
It also saves you about $5,000,000 space credits as you don't use cash to buy it, just materials.
I do hope that lot helps, and again, welcome back from the black commander -o7-