Attach any small to mid-size QR tripod plate to it and move from Tripod use to Spider use fast (no need to remove the QR plate)
The SpiderPro plate allows for the user to shoot comfortably with a pro flash attached (camera is upside down, lens pointing back and flash hangs down) so your camera/flash is by your side ready in a moment's notice. This position also protects the flash as you move about (the flash is not pointing sideways hanging out of the body, but "under" the camera)
Allows for Quick attachment of any third party neck/shoulder straps to be used--either as a strap or tether. Many use their R-strap as BOTH tether/strap when they want to
The SpiderPro plate, when installed correctly will situate the camera body so that the camera will NOT slide/come off the holster easily when bumped from under even when the Spider lock is on the "open" position
Allows for a D-ring attachment for wrist straps (as most will no longer use traditional straps)