if i upgrade a mine to x2, does that mean it's doubled?
and if i the upgrade it to x3, does that mean it's now x6? or is the tooltip a lie and it actually just replaces the x2 with a x3
it sure seems like it's doing absolutely NOTHING. because i have a bunch of mines up to x3 and one is up to x5 and nothing seems remotely faster.
what a simple mechanic to get right and you couldn't even do that.