This to me is just ridiculous to make the 4th tier a single augment slot and that it costs 10 comms.
For example, if you wanted to do another upgrade on Twilight, you get a red augment slot which will probably equate to another spell power upgrade, but it would only be 114 maximum (which, unless you find the one you want, it will cost even more comms and resources to make). Considering the current tier 3 gives you a 120 Sp. Power upgrade, this upgrade is totally lame. If anything it should just be added to the current tier3 and then add something else better to Tier 4.
I know that I will definitely be saving my comms for something else if this stays for live.