I have actually used them for one season now and find them far more accurate than fletching - and no I am not a staff shooter! There is some solid science behind this product and the customer service is second to none! It took alittle figuring out to get them dialed in, so of all the people to guide me through(some obvious things I missed) the prez of the company helped me out! Honestly the only down side to FOB's is you could easily go through a tube of these suckers because you will be stacking them on top of each other, being ridgid plastic the break! As far as the switch to a fall away rest( Vaportrail Limbdriver - the best!) , you'll find this to be an upgrade because the arrow is in contact with the bow for less time and as such is not affected by slight induced hand torque near as much say as a Whisker Biscuit. The pluses are too many not to aleast try them - they stabilize your arrow far faster, side profile is less effected by cross wind due to the smaller profile, less time consuming to put on your arrows and they're bloody accurate! If you like tweaking your rig to wring every last bit of accuracy out of it Fob's will help you do it - broadhead or field points!