ok, well i have a TM Silent Hunter rest. i also have the little arrow keeper made by golden key that slides on the rest to hold the arrow..it then flips away when the bow is drawn. the problem is my vanes are 5" and the brace height on my buckmaster 2000 is short enough that the tips of the vanes do not let the keeper far enough back on the arrow to effectivly hold it on the rest...if i switch to 4" vanes the problem would be solved. if i do this, what will happen to my arrow flight. will the 4" provided enough stabity. right now the 5"ers are fletched straight with a slight right twist. everything is shooting good now so i dont want to mess things up. i and shooting about 60#, 29" and xx75 2216's and 90 grain broadhead/field points.....thanks in adavance for any help you can give me