As expected, the Boo prepared arrows were grouping appx 1" @ 60 yds. What wasn't expected was all the arrows (both Boo's and the factory fletched, heavier STs) had the same trajectory. Why?? Pictures are below. I'd planned on de fletching the Spynal Tapps, spine indexing them and then refletching. That plan's on hold.
The pictures below tell the story.
The M405
![Image](http://img.photobucket.com/albums/v503/sewdds/ceb12586156498830e480bb2f7b842ec.jpg)
White fletching STs, red - Boo's. Note: the STs often have up to 2" horizontal spread ar 60-80 yds. Happened here. The aiming point was the red dots on the tgt.
![Image](http://img.photobucket.com/albums/v503/sewdds/8c575187855eb7a2d8dc906a0bd08293.jpg)
Here is a 60 yd pair of shots : Boo's arrow with a 170g field tip and a ST with a welded shut FOC. This picture isn't a fluke : it happened repeatedly. It's like the M405 doesn't care which arrow is shot out of it, it's just going to hit the same place regardless.
![Image](http://img.photobucket.com/albums/v503/sewdds/76c8426991d4c96541d4c45d570c70a2.jpg)
![Image](http://img.photobucket.com/albums/v503/sewdds/a45199e85c899ae77d80ad1de9086401.jpg)