Nope, you did the right thing, but there is one improvement you can make:

[http://search.cpan.org/~vkon/Tcl-Tk] => http://search.cpan.org/~vkon/Tcl-Tk

Just drop the version number from the URL and search.cpan.org will link to the most recent release. I myself am perfectly fine with having to do the extra work myself, as the [cpan://] (and [kobe://]) tag handles the majority very nicely.

UPDATE: ysth++ for substituting ~user with the easier to recall dist ;)

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)