The only thing I do not like is the weight of 3.5 g (from Devoto is 2.1 g, for my Tomba 1.5 g) and is maybe a little too long, 3 cm. Asymmetrically hanging nylon maybe deflects the arrow but the overall result, I believe, is more hydrodynamic slider.
www.pescasublog.it/wp-content/uploads/2011/06/X-SHOT.pdf
www.pescasublog.it/wp-content/uploads/2011/06/X-SHOT.pdf