http://www.perlmonks.org?node_id=418408


in reply to Re: Mutator chaining considered harmful
in thread Mutator chaining considered harmful

Echoing the point made in the updated OP, wouldn't it be better to create a method that let you do that all at once?
$Ifile_format->addRecTypes($XErec, $XFrec, $I7rec, $HMrec);