I've shot thru the mesh shoot-thru windows with fixed blades and they seem to be just fine. I would not use a mechanical on a shoot-thru mesh window. I agree with txrookie, you need to figure out what the problem is. Sounds like you are trying to take a short cut. I use mechanicals and fixed blades and you should be able to get them to fly pretty close. You may find some of the larger cutting diameter blades won't fly as true as field tips. Most of the 1 -1/8" or smaller will fly pretty true. I haven't had as much luck with the cheaper heads like Eastman (walmart). There is no majic blade out there that will find the target if you don't practice and improve your form. Good luck.