Thats a BIGGGGGGGGGG POINT. I under stand it has to be to get the weight.
I made a few from moose antler. But only made mine 1x3 and raped lead wire behind the head to get the wieght I wanted. Some I drilled a hole where the pit is and add the lead wire in it to get the weight.
Here's another thing to think of. Make the backs tappered not square or barbed.
Those square backed points work lose perty quick pulling out of a target. When their just tied on.