BUT,Easton does not include the point length as in the picture,imo,when dealing with arrows,you are better served to use their reccomendations.
Here it is right out of their arrow tuning guide.
Sorry about the size,I have resized it twice now on Photobucket and it is shown as being resized there but it won't translate to here,it keeps going back to full size.[:@] Wow,now it has resized[&:]