Finally got the new Katera dialed in and shooting within my range goal I set. Picked up a dozen Easton ST Axis Nano 340's today with 125 gr. heads weighing in at 428gr. They are shooting at 304fps with a 28" draw, which is within the 300-310 range I was looking to achieve with the setup. If I shoot a 100gr. head with arrows weighing 403gr. I am only picking up 6fps at 310fps. Gotta say I am very happy with how this bow is shootin and thanks to MECHDOC for helping me chrono the setup today.