do what i did. trim an inch and a half off and they should be spined OK. i shoot Epic 400s. 67 or 68lb draw(i dont remember lol) and 27inch epics...with a 28 inch draw. i hunted and shot 1000s of arrows like that..kinda scary with a prong rest. the and of the arrow JUST barely clears the prongs...it was the only way i could get my BHs to shoot. they were 29 to start. saved me money from buying new arrows...i need new ones now and will get the correct legnth and spine this time....you can sometimes get around spine problems by trimming arrows(if you have the room...) or by increasing or decreasing draw weight and head weight. all are cheaper than buying new arrows....unless you NEED new arrows..