Hey mate, yes they definitely did overcome that issue. They didnt drone or boom. I used to have a catback on my VE SS and it droned something shocking so i was very careful about selecting exhaust for my VF.
Unfortunately i can't show them to you as i sold them. I got rid of them as, while they didnt drone, i wasnt a fan of the note and decided to go back to stock and go a proper full exhaust, intake and tune when factory warranty expires.
Cheers,
Whitey