re do the whole cloak thing. For planets, ship mods and artifacts.

dark obelisk : +10% cloak

How about removing a limit of how many you can use at once?
Or how about using the base lab? 10 pyramids = 1 obelisk...

15% cloaking for an hour then seems fair...

-1 to percentage increase-based artifact. It just widens the gap even further between lower and higher level players (If I was Dan for a day, I'd nerf every % based combat/hacking/raiding/invasion arti for this reason). Keep it a fixed amount, whether 50, 100, 200, whatever.

after seeing the word "stack"....
a random thought occured....
As the higher ranks would eventually end up with tons of those, why not allow ppl use dark pyramids in "stacks"? Other than CT forge, you will probably end up with excess anyway, so allowing ppl to use more at a same time will also make them "go away" other than being scraped

Ofc, there should be a limit on how many you can use at the same time. Perhaps something like rank/25. That way, you can gain no more than rank*2 cloak with dark pyramid. Although a rank 1000 can earn 2k cloak this way, but if he is buring 40 pyramids per activation.... well.... he kinda deserve it
And this mostly only works for "hiding" on BT too. Because if u use this for hack spree, you might get a few in. But runs the risk of getting CMed and it would be a fairly large loss.

A static point based boost gradually loses its effectiveness as you progress into higher ranks. That's the problem to begin with. 50 cloak at level 200 is meaningless. 100 at level 300 the same.

A percentage base boost scales with the tech you have on your ship (following rank in a general sense). This allows you to more effectively "hide" from the better scan available as you go.

Now, normally I'm not a proponent of stacking cloak on your ship because quite simply, it only hides you from ships that you can stand up against. People with more scan usually have more decks. People with more decks are usually higher ranked with attack/defense that you can't combat against. But in this case, a percentage based tweak to the Dark Pyramid just makes sense to me. It gives it usefulness to everyone, not just the really low ranks where 50 points is a big difference.