I dont think the mod need to balance out against the quantum suit, yes they are used for the same things, basic flight and armour, but once it gets balanced out against one thing another thing will pop up that it then need to be balanced against which will completely kill the first balance.
Balance the mod for the curve you think fits best, if you want to make things harder and delay people getting power full to early add an assemply time for adding modules like steves cart does. So when ever you add something new to the armor, a new battery as an example make the the table take the armor for some time to install the new module. afterwards you can go back to the table and change the setting this shouldnt use up time since it would kill the experimentation part of the mod
Balance the mod for the curve you think fits best, if you want to make things harder and delay people getting power full to early add an assemply time for adding modules like steves cart does. So when ever you add something new to the armor, a new battery as an example make the the table take the armor for some time to install the new module. afterwards you can go back to the table and change the setting this shouldnt use up time since it would kill the experimentation part of the mod