Thanks for all the feedback guys! To answer a few questions. The router bit is only 6 months old, but in saying that, this is only the third body and about the 5th pass around a guitar body so the bit is practically brand new. I was talking to one of my neighbours who is a boat builder and i showed him the bit, he seems to think there was a hairline fracture in the tungsten going by the colour of the blade where the fracture happened, which with a few people saying they have never seen this, its becoming more evident. Its not a cheap bit either at $80 or so.
Myka I agree with your comment on the router table. Holding the workpiece rather than the router will give much more control. Ill have to have a look into making a decent workbench. Also that body you showed in your picture, i noticed you have hollowed the entire body leaving no block where the bridge would go. How do they go for feedback? Im assuming thats a hollowbody electric. That was my original plan but i thought i better play it safe with a block under the bridge.
All is not lost though. Im going to finish routing the body and just reshape the cutouts a little deeper on both sides and hopefully ill get away with it. Ill post some pics of the outcome. Just give me a week to get a new bit etc.