Nice tip! Using that I was able to pinpoint from where the complaint was coming and fix it. It's not the elegant solution I was hoping for, but it worked and the problem's solved so how can I complain? ;)

For those who are interested, here's the offending line of code causing 5MB of that warning:

map{ td({align=>$align->{$_} || $default_align, valign=>$default_valig
+n}, $main_row->{$_}) } @summary_columns;
[download]

Only a couple of thousand more lines like that hidden around this massive system to deal with now. :P