Matt,
Do yourself a favor, and go shoot a Reflex Ridgeline. I thought that the Vectrix would be the bow to get this year, after having shot a Trykon XL last year, and absolutely loving it. However, I found that I liked the Ridgeline34 better than the Vectrix XL. Smoother on the draw, and even less hand-shock. I have to believe that the STS adds a small amount of hand shock, because essentially, both bows were pretty similar, with the Vectrix being the one I would have expected to feel better. Both bows are quite nice, but I am just really impressed with the Ridgeline34.