Honestly, I was thinking about this too, and doing more research, the topic of "Super Spider" is still highly controversial. From what i'm reading here and there, its generally considered "fatal", but some people are claiming that they have done it and the babies survived. There isn't really any proof to back these up.
If there is a Super Spider that can live, like the "Pearl" that miraculously survived a long time ago, it hasn't been bred yet. This could be because it is an actually fatal combo, or is such a rare chance that we aren't breeding it enough to get one, for the fear of the first reason.
It would be interesting if someone could actually do what you are saying, like track the development of the embryos, and maybe fix and allow a super to exist? My only worry is a "Super" of a wobble gene may not end too well... (Look at HGW x HGW)
There is a research paper about it on researchgate or something, but not a member so could read the full thing.