...head and handle separation on the CS trailhawk [at least] is the nature of the beast, especialy if you are throwing the hawk. Before I discarded the CS trailhawk, I had some luck using sandpaper to smoothly fit the taper of the handle to the flaring of the eye. I rap the top of the handle on a dense surface to drive the head onto the handle then reverse the motion to remove the head. Look for where the top edges of the eye are gouging wood and sand there with the flaring taper towards the top in mind. Replace the head on the handle, tap it into place, remove and repeat inspection and sanding until the eye edge is only shaving a tiny bit. This works until you run out of handle above the top of the head. Then you start with a new handle. If you get a good fit before you run out of handle, you can soak the handle in kerosene or water but I like an whole handle linseed oil treatment best. The custom sanding to fit is the best reason the head stays on. Since I don't have a press to install the handle, I pound the head onto the handle with repetitive authority. The only hawk of the dozen I've been throwing the past year that hasn't had head handle separation is an H&B Shawnee. All the rest have but only during throwing and then only when I don't get the throw right. Under rotation will drive almost any head off the handle. You really should be able to make a good head to handle fit with patience and sandpaper. Since I've been throwing I've accepted that handles are disposable. I keep plently of spares on hand. Hope this helps. ptn