Sorry, it's been a while since i touched this stuff, but did you try SOAP::Trace? http://search.cpan.org/~byrne/SOAP-Lite/lib/SOAP/Lite.pm#SOAP::Trace

Have a look at it and maybe you will have some better answers when you return. :)

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)