I've never heard anyone say "I pledge of allegiance", however there is traditionally a natural rhythm to the pledge that provides a pause between "nation" and "under". Just as there is between "allegiance" and "to", "flag" and "of", "America" and "and", and "Republic" and "for".
Scouts (or anyone else for that matter) who asks, "please join me in the Pledge of Allegiance", and then begins with "I pledge of allegiance" instead of "I pledge allegiance". Those are usually the same Scouts (or others) who insert a comma into the line "one nation under God".
From the moment National rolled out the ODL field uniform … why not the same tan shirt for Explorers (but with green epaulettes) and Sea Scouts (but with white epaulettes)?