Cheers stealthie , its good to know details like this as an A rated cutter can cost a pretty penny and the rebuy is nothing to scoff at either.
Depends on your ship spec', of course, but swapping down to 8D thrusters can have a tidy knock-on effect with regard to the PP and PDist too.
I needed an 8A PP to run 8A thrusters and a 7A PDist (in order to build boost quickly).
By swapping to the 8D thrusters I could trade down to a 7A PP and I swapped to a 7D PDist too.
Altogether, that's something like Cr150m saved on the thrusters, Cr110m saved on the PP and Cr9m saved on the PDist for a total of around Cr270m.
Quarter of a billion credits to go 25m/s faster... in a ship that doesn't really
need to run away from
anything.
Course, if you have a build that needs the power for other things, you'll have to keep the 8A PP and 7A PDist, which'll make the ship heavier, which'll mean the 8D thrusters don't perform as well.
Equally, I guess if you're trying to
catch other ships, maybe the extra speed
is worth the expense.
Horses for courses.