Clever solution to avoid the use of velcro.
Unfortunately the RockBoard provided alternative screws are wrong for MXR and/or EHX pedals: the assembly of the QuickMount Type A with a MRX and/or EHX pedal with the RockBoard alternative screws will permanently oversize the pedal mounting holes, compromising the geometry of the pedal case without any possible corrective action.
This information, at least, shall be stated as a "warning" in the product instructions in order to avoid possible damages on any part.
Replacement screws with a correct diameter will be a good, and expected, product improvement.