OK, since this thread got started, I grabbed a Youtek IG Radical OS and Jonathan was kind enough to lead it up and string it for me. Playing some dubs at lunch with Andy, Spencer and Gran so will take it for a whirl and see how it plays.
Specs are now:
10 points head light
The RA of my sample is 60 so just two points higher than our tested average.
Strung with TF Razor Code Carbon 16 at 58lbs.