There’s not much on his website that shows how the trickler works. Do you have any links of videos? Thanks.A tuned scale, and one of these, http://www.targetmasteruk.com/page3.htm is quite fast and accurate. They are dependent on a few batteries and gravity. Batteries I have always had. If gravity fails, I will have issues larger than reloading.
Allen (1066 on here) makes the TargetMaster. He is a fine gentleman. Were he not in England, I think we would hang out.