The two terms "Sam Welch Scroll" and "Simple" do not correlate. I've watched him create these beautiful flowing scroll patterns for many years - even tried to cut them myself.....one fateful time....failed...never tried that again.
So you're drawing directly on the piece and your magnification consists of an opti-visor, that is seriously amazing work. Are you mirroring the work to the other side of the action with the transfer wax clear tape method or a different design all together?
T.G. the other side is a mirror image. Yes, I smeared a fine black powder into the cuts of this side, lifting with cellophane tape and put tape to tape to mirror the design, placing that onto the other waxed side. Then I make a smoke pull of the first side and use that to aid in redrawing the mirrored design to get it as close as I can. I always use transfers as a means to get all the elements correctly located and then redraw for correctness. And also yes, I only use an optivisor. I have an excellent eye doctor!