Thanks for the response! I'll have to check regarding the 8+8 which is a good point. I can definitely take it out and put in my spare 750w (if it fits, I believe it's a SeaSonic 80+ Gold), but I would loose the wireless charging and the Inwin shield which is purely aesthetic. Not to mention it would require almost disassembling everything and rebuilding to keep it as clean as it is now.. so was wondering if that was 100% necessary.
If 600w is sufficient as you say then I'll leave it. Thanks again for the response.