Some people tend to shy away from these kinds of tops. I mean, if I'm honest, I get all the reasons why. There is a lot more work to be done, and because of the spalting, things can go wrong really fast.
In extreme cases, parts of the wood can be so soft that the router just decided to take a big chunk right off and ruin your day. Has this happened to me? Of course, more than once in my life, but I think the payoff makes it worth it.
The trick here, if there is a trick really, is to go really slow. Plunge very shallow, and cut almost to the line... As a matter of fact, it's best to finish certain parts with rasps and sand paper, than risk a power tool mishap.
Since...
This guitar's theme is the spalted wormy top.. I decided a pickup needed to be part of the composition... I think I'm on track for something special.
MenO