GR8.....Yes....MINE did change (windage adjustment - switching from skinny to fat shafts). What I was doing though....is relating this for a lot of guys who shoot the same arrows for 3D that they hunt with.

For me....I'll be shooting the same arrows for 3D, period. It's just that some shoots I'll have to abide by a fps regulation. For those.....I'm going to have to build some REAL heavy arrows. It would be nice to not have to re-sight my bow between shoots. So.....I was thinking about this. I love killadoe's suggestion. One would only need 2 sights instead of 2 bows. If the 2 sights had a dovetail bar.......even easier.