RE: Merging 2 XML's in to 1 output XML (Performance I

> I have no means to compensate when 
> Saxon simply fails to report parts of the result tree.

Saxon doesn't "simply fail to report part of the result tree". Saxon 6.5.x
sends you a processing instruction saying "saxon:warning: the result tree
isn't well-formed", and you can respond to that (by throwing an exception
whose message is "continue") to say that you'd like to see it anyway. It's a
funny sort of protocol, which I didn't continue into Saxon 8.x, but the
mechanism is there.

Michael Kay
http://www.saxonica.com/