Fill in my knowledge gap :)

[lucan07]

Yes only cut the slot and contour once then flip to machine only what could not be machined from front, so back would just be a T shaped pocket to required depth. I would start from same corner point on second setup but on other side of material obviously. Although placement may be easier to cut slot and T Pocket and holes first and then flip to cut remaining front using holes and pockets to fix back down.