I've shot 2 different brands of mechanicals through mesh - BOTH opened up upon hitting the mesh. One was a cheaper brand mechanical that I can't remember the name- it opened up but still managed to fly straight and hit the turkey I was aiming at. The other was a Rocket mechanical- opened up as well. I've shot non-mechanicals through mesh (NAP Thunderheads) and they shot just fine- the mesh had no affect on the arrow flight.