I have some of the Woody Weights in stock. They add another joint to the shaft to head junction, but are very well made and true. Alignment hasn't been an issue for me. Their greatest plus is their versatility; Put them on, take them off, change the weight. I've been drilling the shafts and adding 1/8" lead wire. 2" is pretty easy to drill and adds 70 grains. It works great, but is permanent. Figure about 1 lb spine for 10 grains of weight, maybe 8 grains for the WW.
4est, how thick is the brass tube to get 90 gr/in?