I'm fond of ranger things, I like being able to go the farther by my own means.
So, a ranger needs stealth, speed, endurance, some offensive to remove block points, doing his own logistic (as going far means often going behind enemy lines), needs being able to track (being hidden while aiming). And I prefer the "heavy ranger" style, not the feeble scout.

So, I choose to upgrade my escort starting ship with a utiliity scout, but I soon saw that the utility support was a better ranger than the scout! as the support was lighter and with more passive slot.

What puzzle me more, is that a lighter ship is told bad, as it is written red instead of green.
So, is that a bug, or really the mass can be a good thing for a ship in this game?
At now, all I see, skills and passives, is made to reduce our mass, not to make it heavier...

By the way, not Mass but Engine Burn:

I think there's a bug in the store of ships:
I have a SU-1 Archanis(G.e.m.) support utility ship, and when I see exactly the same in shipyard, it says
0.20 0.38(green)
as if this supposed exacty same ship in store was better than mine on the E.Burn point.

Coming back to ranger thing:
Reading the description of support ship, I now understand why I prefer them, as they are more the "heavy ranger" thing than the other scout ship.
But, still, I wonder why the support ship are lighter than the scouts. But it's good for me, as if I prefer support, it's too for its lighter mass...

Isn't lower mass better given that mass slows you down in both forward thrust and turn speed?
Why is a higher mass green when looking at ships?

Why does mass even matter? You are in space where nothing has any weight for the mass of your ship to even effect anything.

Yes, if there is no gravity, Weight = mass * gravity = zero
But gravity is a force, what does the engine, which is applied to the mass to change its direction (for gravity, direction is the center of near bigger item). If the mass is 'heavy', you still must have a bigger engine to go the same way in same time. So, the mass does matter.