I am wondering if it is a setting that I use often. Basically it is between the Smallrig or Lensmate.
Smallrig is so much cheaper, $14.99 with the shutter button too.
Lensmate is like $80 !
What is more critical is that the obstruction of the compensation dial, the Smallrig really blocks it, and that is a dial I use a lot.
Ignoring the fact that the Lensmate can flip forward, as that is more to use the ISO dial (which I seldom change, it will stay in Auto), I am more concern with access to the wheel and compensation dial. The lens mate also looks like blocking the AEL button a lot which is just as important for back button focusing.
Without flipping it out.
Lensmate - obstruct AEL and Wheel
Smallrig - obstruct compensation dial