In that case, Skyler would find out that the gang was made of cyborgs, and that to become a member, he'll have to undergo the same procedures. If Skyler goes through with it, I'll tell you what he can now do with his robot parts; if not, well, he already knows too much and the gang will try to kill him. It's possible for him to get away, but it won't be easy/will take a rescue.