I guess my build is kinda in the middle of you guys....
After Northpins post and build, it inspired me to drop the FSD and fuel tank down a size... That was very smart, still gives decent jump range but gave me almost an extra 100m/s (have to try this with the rest of my small racers)... Thank you Northpin
Current build...
Material Girl
still needs a little engineering (she was originally my material gatherer and wake scanner at the 'soup kitchen' ships, inspired by D2EA vid)....
Without SRV 850m/s... With SRV it's 806m/s... but still multi-role
Shield 684, 5 second Boost...
Direct boost into my FC at 804m/s (with SRV) at 90 degree angle mostly resulted in 50% shield but no hull damage. Only once took shield away completely, 85% hull left. Test for 'repair limpet resulted 29% hull repair increase per limpet (but flying with 2 limpets decreased top speed down to 783m/s)
My reasoning for parts I chose...
I needed a Hot Pink beam laser for just in case I'm picked to be 'The Finish Line' marker (I felt Hot pink would be the easiest to see from a distance), I also engineered with Regeneration sequence to help heal peoples shields faster.
A repair limpet and 4 ton cargo bay to synthesize repair limpets for myself and fellow flyers (obvious reasons)
2 Railguns, 1 with Super Penetrator to go along with the beam, cause... 'Open play... ya never know, the other is 'slugs so I never run out of ammo. (would have been more fun with firework Flak, but can't 'lightweight' them.
Heat Sink... cause if you fuel scoop in a courier, you already know! (the half size tank helps a lot with this.... but there's also the Railguns)
I almost never fly any ship without SRV
And finally the 5 second boost with the best distributor cause Courrier's boost speed drops off very fast... and sometime having a faster boost interval can make up the difference from having a higher 'top speed' but a longer boost interval. (translation... even though I'm a little slower than you Northpin, I might still be able to go neck and neck from your slower boost. vroom vroom, you ready? lol)
So to have all the toys means bigger power plant and distributor.... However, that 850m/s is the fastest this build can go... even if you right click on 'Optionals, Hard Points, and Utility's' to completely clear them all out empty down to just Core components, this ship will not go over 850. Same with Northpin's faster build with smaller power plant, 885 is max. All ship have a Max speed where you can add weight without harming top speed (jump range will still be affected though, but not speed).
With the right pilot this ship could possibly handle Haz-Res, but I'm pretty sure I better just stick to 'High'.