Well I guess I'm not one to leave well enough alone.
I like two blade broadheads for penetration, but I like four blades through the hide for blood trails.
I bought Some Zwicky No Mercy single left bevel broadheads and cut slots in them with a dremel tool to accept some old Bear Razorhead inserts I had.
They weigh about 175 gr. The Razor insert fits better than the Bear installation design. I shoot a 68 lb recurve and the arrow total weight is 680 gr.
My experiences with Bear Razorheads were that the insert will often shear off with bone contact allowing the head to continue penetration yet giving me an x shaped entry wound.
Mind you, I have always shot fairly heavy bows and the only game I've taken with Razorheads were whitetails.
As far as shooting these modified heads goes, they fly perfect from my set up.
Who knows, Maybe this combination of two fine broadheads will bring me some luck on my up comming Elk hunt.