What's confusing is that Ford compared the SHO to the Ford GT in a chart from 2015, and it listed the SHO as twin independent VCT. I think they did that also on some of the spec sheets. I looked at my engine and there's only 1 spool valve per cam cover, like the 4.6L/5.4L 3V V8 engines.
I'm not sure why they didn't make the SHO engine Ti-VCT.