Mobow when I run his setup on OnTarget his arrows spine dead perfect. (assuming shaft lenght of 26" which is probably pretty close considering his DL is 26.5).

His speed is 234, not 292 like his signature says. 292 is more like the IBO speed.

I'd start with the easy stuff first. Make sure centershot is correct and nock height is level. Then do what the picture says from there.

By the way, if the arrows are much longer than 26" they could be getting a little on the weak side.