Concerning the OP question about arrows speeds. I do not notice a great deal of difference in my point on distance from cedar to doug fir to 1918s. Some bows, perhaps, do not change speeds as much as others with varied arrow weights. It works out that my point on yardage is longer than some, even with my shorter draw and anchor with the arrow lined up to the corner of my mouth. Total arrow length perhaps makes the visual have a greater degree in that line of sight to angle of arrow equation. The difference is only a couple of yards, too small for me to give a definite number. How that translates in to arrow loft at 35 yards is even less discernable for me, I may be unconsciously lifting the heavier shaft, but I can put both cedar and firs in my quiver and not have one or the other consistently hit high or low. I can sense that with the 50 grain difference that one is faster and I was told that if you can sense a difference, the difference is at least 5 fps. I do have bows that a 50 grain difference shows up more, but those bows are very fast recurves with lighter arrows, where as most of my Hill style bows do not seem so fast in comparison, even with lighter arrows. These Morningstars, like other longbows, seem to be more efficient with heavier arrows and less efficient with lighter arrows.