I'll get a few shaves in with each, and report back, I have the Feather Pro Guard in each right now, but I'll switch it up. First Shave I did with each produced very similar results. The obvious differences so far are the weight (Amakuni is notably more robust, but very good balance) and the position of the head. Both maneuver easily, and both feel as you would expect regarding quality. Ill throw a Pro in and get some shaves in. I like the feel of blades after a shave or two, so it may be a few days before I am able to convey adequate impressions.Would love your input regarding the Amakuni and the Spirit. If possible, using the Feather Pros or P30 blades.