You know those little rubber barrel loking thing that you snug up against the arrow to avoid arrow pinch. Well according to the bow speed formula you lose 4-5 fps for each accessory. Well when my shop set up my bow hae always adds 3-4 extra cushions on the string. In all the years I have only lost1 maybe 2. To gain more speed should I take them off or leave them and don't worry about them. Since their rubber I thought if anything they may help in dampining some vibration. Any comments or feed back?.