It would be great, if intelligence implant would "recalculate" you overall skillpoints.
For example: you can get this implant on lvl 30, so everyone who got this implant after lvl 30 will be in worse situation, so it will force people to create new chars just because of that implant. Of course 8+ intelligence characters with lvl 150+ will not bother with this, because they will get their skills capped already, but it's a very important thing for 1-2 intelligence characters, which want to get high lvl.
So i suggest to give these "lost skillpoints" to character, which got INT implant, formula will be smth like : SP added = ((Current char lvl - 30)*2)
Thx for attention.