Does anyone use one to sharpen braodheads?

I tried a Lansky once. Didn' t care for it at all.

The bleeder blades on the Zwickey' s are fixed and I don' t know if they would be in the way with the Lanskey stones or not.

Yes, they will be in the way if you' re trying to use a Lansky. IMO, learning how to use a file & stone is a necessary skill. Once you are proficient at it, you won' t be dependant on a specific sharpening " system" .

Who' s had experience with these two heads?

I' ve shot and hunted with them both, and MUCH prefer the Zwickey Eskimo four blade heads. The slightly convex blade makes sharpening them a snap since you can pinpoint the exact spot on the edge you need to work on. With a straight edge, it' s all or nothing. Better yet, ever tried to get the factory grinds off a Magnus with a file? Not a fun job. With a Zwickey it' s soooooooo much easier.

As far as durability goes...I put an Eskimo 4 blade through the center of a whitetail doe vertebrae in 2000, then killed two more deer with it that year. It' s still in great shape. Unfortuntely, I' ve rolled more tips on Magnus 2 blade heads then I care to remember. Never once rolled a Zwickey.

JRW