I'm just finishing up my C-Beam XL and I have 2 questions. 1# What is everyone using to attach their Plates to there Wasteboards? I've tried various wood screws and none I have found yet are clearing the extrusions, thus allowing free movement. 2#. Using Mach3 as the controller software, is the second stepper driven leadscrew on the Y-Axis to be setup as a Slave even with its own stepper driver or do I use my A_Axis Driver? I am using the Geckodrive G540 as my Driver and BOB setup.