After discussing it back and forth for a while, Kirk Lavender, of Big Foot Bows, home of the Sasquatch, made me a 19" ILF riser that arrived here a couple of days ago.
The riser is great looking, solid, shock free and has an amazing grip. I'm not sure what Kirk did technically, but whatever it was it worked. When you first take hold of it it's not immediately clear how great it is, but as soon as you put on pressure on the string it becomes clear. With any string pressure it immediately slides into the same position every time and stays there.
I've shot it so far with 50# Morrison limbs, but with the ILF fittings I'm going to take it down a few pounds for the 3D season and then go back up in August to be ready for hunting season. My first time out with it I was getting 6" groups at 20 yards with arrows that I grabbed on the way out - with a little tuning the groups should be tighter, but then the 10 ring on a Reinhart deer target (assuming you use 8-10-12 scoring, is about 4" across, so were not talking about needing a lot of tuning.
Knowing that a picture is worth more than words: