quick question about splash stacks

[Peter Alcibiades]

What do people usually do when launching an app using a splash stack, to check 
if the main stack successfully opens?

Do you use try, or do you write a custom error handler?

I am wondering how to take care of the case of main stack corruption.  I'd 
like to have something that if the stack doesn't load, it does a series of 
things to restore from the ~ file.  

How do people usually do this?

Peter