I suppose that's what I've traditionally done, but never really thought about the logic of things.image quality wise it does not matter. radius is variable by feature size, not total file size. I usually crop before I start anything, after I rotate and correct for perspective. but it does not matter.
Same here.I start my editing in my Raw converter (ACR) and one of my initial steps is global capture sharpening and doing global noise reduction.
I don't crop in ACR because I prefer the Crop tool in Photoshop.
But cropping is one of the first things I do I in Photoshop if I am going to crop.
In Photoshop after cropping I do whatever, if any, local sharpening I want done in the image.
I do a last global sharpening if the image is destined for print.