TC4.1 research may be easier than TC3 in your opinion (I don't agree btw), but TC3's best content was the Axe of the Stream and Wand of Equal Trade. I mean, that was as powerful as it got, which is kinda sad looking back on it. TC4.1 (+TT and other addons) is really when the mod started being respectable in terms of power, partially because it didn't heavily drain your resources/time to get sub-par equipment (let's face it: even now, TC4 stuff and magic items in general are less powerful than equally expensive items from tech mods, and KAMI is only as good as it is because no tech mod outside GT dares make anything that absurdly expensive). Also, individual nodes are a lot less powerful in TC4 than in TC3. So, it was more of an issue of TC3 being not easy enough for what it gave.
Btw, believe me: the second you think about touching KAMI, you will need a lot of nodes. A lot.
Btw, believe me: the second you think about touching KAMI, you will need a lot of nodes. A lot.