. The word is shorting as in creating a short circuit. As in what Apple did in the 256GB 2010 SSD only version. Yes, really, they did.Using the optical drive sensor works very well and is certainly to be recommended over shortening the sensor cable.
I still recommend using a sensor as I did when I installed an 850 EVO in my 2010.
BTW, I never use cloning software anymore—don’t believe in it.
I do not pre-install an OS on the blade (or any drive) before installation on any iMac. Never have, never will.
I make a Time Machine backup first unless I have one already available. Then I install the raw drive. When done, I boot from a USB thumb drive, either High Sierra or Mojave and install the OS. When done, I use Apple’s Migration Assistant to restore from the Time Machine backup. This is how Apple recommends doing it.
Every time. No sleep issues. I did mention I’ve done quite a few over the years.