It is overkill but it is just nice for my various platforms like Steam, Battlenet, Origin Uplay all to loadup nice and fast and then for certain games to load up pretty quickly as well.
I totally understand your reasoning, and It's your machine, I'm was simply pointing out there's no real world difference that you personally wouldn't notice.
Seeing as there's 8GB Cache on most large SSHDs all your gaming programs will easily fit into the SSHDs cache, allowing them to load just as fast as a normal SSD, SSHDs will only store files which you use the most often on the SSD part of it, Giving Steam Origin Etc, SSD loading times anyway.
Moving on, It's just an observation that's been made as not all games load their Data the same. Games that load a single large file wouldn't really benefit from an SSD compared to games that load lots of random small files.
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It isn't an overkill at all. All my games load near enough instantly. Since when is making your PC faster an overkill?!
That's not want I claimed,

Please don't twist my words and make it sound like I'm saying something I've never said, Thank you.
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This isn't underclockers my friend
SSDs are of course more suited to applications that use a lot of small files, rather than just opening large files, but I'd expect games to load significantly faster. A hybrid could work as well though.
Moving from an HDD to a SSHD is not under-clocking,
Correct, that's actually what I just mentioned in my statement, maybe one day, SSDs will be able to handle large files in the near future, (Fingers Crossed).
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BX got really bad reviews why?
I understand that the Crucial BX SSds have somewhat slower write speeds, No caching or high-end encryption & Lacks protection in case of power-loss, all of which are bad selling points.