The ILF design has been a boon to all of archery and now is getting discovered by the bowhunting side. This has been delayed, since the metal riser actually was just coming into its own in the early 70's when the device came along and put a hold on most recurve/longbow design. Folks today are redescovering the metal riser, and together with the ILF fittings, one can have a veritable smorgasbord of bows with just one riser.
What goes around comes around, and the metal riser is coming around again.....that's a good thing. Choices....you gotta love it.