Yes, so without the riser your powder setup will run into your safefty primer, is that what you are finding out?
I suppose one could only order a Lee Charging Die and Riser, and still run with your RCBS dies for the others?
One thing we found out after some use, we like the Adjustable Charge Bar much better than using the disks for your powder charge.
Being adjustable, you can really zero in to get just the charge grains that you want. Check that out if you haven't already.