I have never heard this implant theory before now, but I'll say, anything is possible.

I have always believed there to be a variety of implant types used for a variety of purposes. We have heard a lot about tracking and information storage, but I have not heard of genetics as a connection. Human hybrids have been described by abductees, but what if the function of some implants is to genetically alter the subject in a "timed release" fashion. If that were true, then removing the implant would have a deleterious effect on the hybridization process, just the opposite result to that claimed by "AC."

All I know for sure is, anyone who has been in close contact with the grays (and possibly, other alien groups), will experience a marked increase in psychic abilities. I don't know how or why, but if these new found abilities are not the result of some sort of manipulation, genetic or otherwise, then I don't know what you would call it. Abductees ARE first generation hybrids. I would refer to the ones reported as having been seen on board alien craft as second and third generation hybrids. (Some look almost human, and are most likely third generation, at least.)

Another point to ponder: The first KNOWN abductees were Barney and Betty Hill, back in the sixties. If you use the Hills as a chronological starting point, abductions and hybridization experiments have most likely, been ongoing for thirty-five years. That's enough time for the aliens to be multiple generations into their program. Now, that thought begs the question; where do they keep all these alien hybrids?