Jarrod, I've heard good things about the Whisperstick but never shot it or the River runner but I've owned and still occasionally shoot my old Chinook plus a couple of others belonging to fellow club members. It is exactly the bow you have expressed an interest in concerning quietness and speed. Can't give you a figure on quiet but my 60", 55#@29 1/4" Chinook chronographed a 565 gr. arrow at 184 f.p.s. On top of that they are very forgiving, stable and beautifully made. A bow made to order from Dan is delivered in about 4 weeks. Talk to Dan, best guy you will ever deal with.