Sorting through old stuff deciding what to give away and what to throw away, I dug up two fiberglass fish arrows with big feathers and broadheads. I made them after I read a Monty Browning article. When it comes to solid glass fish arrows, 85 pounds and 55 pounds are not the same thing. I shot them at my deer target from 25 yards, you bet, the first shots went under the target. The next attempts were on, penetration was nothing special, loggy flight. My wife said it was like watching a slow motion video of an arrow in the air.