Perfect. This gives me extra time to help Sanbie with her Legend of Tarzan outfit.
Yeah I have the same issue in DS- hair renders are excruciatingly slow for me. While at least DS 4.8 is MUCH faster with 3Delight renders, Iray is an exercise in major patience when it comes to any hair. I think it took most of a night to run the Harry Iray render I did and it wasn't very large either. ( I opted to wait on downloading 4.9)
I am loving P11 espec for hair. That render was done at around 2000 pixels and at reasonably high render settings, with several lights with ray traced shadows. Took about 10-15 minutes maybe. And yeah I love SAV's hair as it so easy to make it work with Dusk.
I had a similar experience with iRay. I grew impatient when it renders transparencies like eyes and hair. It was really testing my patience. I have done a couple of promo images for the Jungle Weapons Pack last night with SuoerFly and it's FAST no matter what I threw on it, with or without transparency. The second image took 38 seconds at 600x800 using GPU. Iray takes that long just to start rendering, so if I need to adjust a material, it can get frustrating.
But I need to get another hair for the renders. It's difficult for me to work male characters. ;p