holes 30 define a diameter that is between 15 45 of the interior diameter of the tip 10 more particularly embodiments are envisioned where circumferential vent holes 30 define a diameter that is between 30 35 of the interior diameter of the tip 10 similarly embodiments are envisioned where the end tip vent holes 32 define a diameter that is between 10 30 of the interior diameter of the tip 10 more particularly embodiments are envisioned where end tip vent holes 32 define a diameter that is between 15 25 of the interior diameter of the tip 10 further embodiments are envisioned where the end tip vent holes 32 define a diameter that is between 50 70 of the diameter of circumferential vent holes 30 more particularly embodiments are envisioned where the end tip vent holes 32 define a diameter that is between 55 65 of the diameter of circumferential vent holes 30 still further higher flow embodiments are envisioned where the end tip vent holes 32 define a diameter that is between 80 100 of the diameter of the circumferential vent holes 30 and the end tip vent holes 32 define a diameter that is between 15 45 of the diameter of the interior diameter of the tip 10 such embodiments include those where the end tip vent holes 32 define a diameter that is between 90 100 of the diameter of the circumferential vent holes 30 and the end tip vent holes 32 define a diameter that is between 25 35 of the diameter of the interior diameter of the tip 10 the above described relative diameter sizes produce relative values for the areas proscribed by the vent holes 30 32 in one embodiment circumferential vent holes 30 define an area that is.