I'm planning on investing in a trunk injection system, primarily to treat red oaks here in Maine for brown tail. In the past I have used Mauget and Tree Tech single use capsule injectors with varying results with uptake. I am totally willing to spend the money on a more efficient system, as it will quickly pay off. I'm considering the BioForest EcoJect, Arborjet Quik-jet Air or FSeries Tree IV. I'm leaning toward the Quik-jet Air, as it seems like a powerful tool and relatively simple/efficient to use. I would appreciate any advice from experience with these systems, especially with regards to treatment uptake and overall efficiency. Thanks!