i found putting a single pole magnet (south) at the loading port it counteracts the magnetic force 97.81% from the trees but thats using a single pole rare earth magnet.
as Simon stated about the water though that can cause some real problems but i find de-ionising the pellet helps about 78.46% on that
1 day I will find the perfect setup till then I will just pretend and keep looking
N.E.F.T.A. Classic C Grade Champ 2016