in reply to object contstruction

If you're just trying to call your parent's new() function, you should do something like:
my $self = $class->SUPER::new( @_ );

If your parent is using the two-argument form of bless (which is bless ($self, $class);), then you don't have to re-bless $self - it will already be blessed into the right class.

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.