Changing the interception angle in autopilot for OBS or VOR in the G1000 from 30 to something more aggressive I am flying the G1000 and have noticed that if I program in an OBS TO or a VOR TO (this might apply to FROM as well), the angle at which I fly relative to my programmed in bearing is 30 degrees. 

For example, if I am flying 180 and want to fly to an airport nearby with an OBS setting of 250 and put this in and turn on NAV, the plane will turn to 220, which indeed will intercept 250 at some point. But if I am not far from the airport I am wanting to approach at 250, this interception will get me too close to the airport, by the time I reach 250. So I would like a more aggressive interception angle than 30... maybe 90? How would I do that?
The manual does not state any way to do that. You can adjust the vertical navigation flight path angle, but not the horizontal intercept angle. You'll have to fly that yourself. In addition, in this case you should be telling the G1000 where you want it to go, rather than which heading to go. If you just tell it the heading it will never figure out what it has to do to get you to that nearby airport, so in this case it is working as advertised.