New59, you have a slight misconception about what the arrow is doing when it is leaving the bow. My favorite two bows are 1/4" outside of center ASLs. According to some charts that would declare that i need to drop to 10 pounds less spine with cedar. That is not the case, on the 50 pounder I shoot 45-50 27 BOP with 125 grain heads and 50-55 with 160 grain heads. One chart had that light point getting pushed by a 40 pound spine, I tried two straight grain eyes up 35-40 spine arrows, one cracked and the other bounced hard against the bow. With outside of center bows, no matter if it is finger released or mechanically released the the arrow will first flex into the bow, simple physics, then it will bend around the bow. Byron calls the ends of the arrow node points, the line of those node points is where the arrow is flying. Carbon because of the extra forward weight and section stiffness will respond differently, with past center bows that stiffness is less of an issue. Even with past center bows, there will be a reaction to the string from the fingers. I had a 90 pound longbow slow-motion video from a high end sport camera, the string stayed pretty much on center with either the finger or the mechanical release. We also tried it with a 27 pound Hoyt target bow, there was a definite difference in string travel from my stout glove versus the mechanical release. If you are shooting arrows so stiff that they do not bend, they are too stiff.
Added note, when the gal from the college was doing her video, I also noticed that a deep grab with a stiff tab gave conceivably more string wobble than a smooth release with a more shallow grab from a Cantpinch tab. Bach in the day and maybe still there are those that believe the finger tip release will get a more consistent release than the full fingered deep grab. Or like one said, 'the fingers just let the string go smoothly forward.' A yanked release and smooth release are not the same.