Zero neck tension, so is he crimping ? Or superglue?
while the Zero is a very well made press, I think you are missing the point of the AMP Press. the AMP press really only gives you the advantage of seeing what neck tension you have so you can adjust your case prep. It uses the Wilson style dies so you have to ask yourself if this method gives better bullet runout to that of a conventional press (like the Zero).
The thing for me is that both AMP and 419 are very expensive. As previously stated; would very accurate powder measurement give you better bang for buck? (Autotrickler). Are you going, money no object all out to win f’class?
it would be great to seeing a much more detailed scientific investigation into annealing and neck turning using this press. It feels like, if it was done properly it could set the standard for all reloading?