S.I.S. is indeed a great (PG) 5.8!
However when I moved back-east 5 years ago it wasn't so damned (PG). The only true committing move on it, the mantel, had a "deck-on-the-ledge-then-over-the-edge" fall potential. Maybe that's what made it 5.8.
You'd think the route-author drilling all those nicely-placed bolts would have gone all the way to making in a truly recreational route. Since then, I have not climbed it but I understand there's one at your nose now.
That said, I also think you'll find ALOT of S.I.S.-type "rec-routes" of all grades out west. They're not all gnarly. Places like the South Platte, Lumpy or even the Valley have great relaxing .8s, .9s and .10s (Melvin's Wheel, Tales of Topographic Oceans, stuff on Royal Arches)
However, Smack is right: if people like Erickson or Kor put them up, they'll be stiff (Ruper, Conan's Gonads, The Snaz).
Also, on one of the other threads, folks were talking about first acsensionists making moderate routes (X) because it proved their hardness. I hate that. Make it a classic, not a testament to your lame insecurity.
Don't you agree Jeff?