He may be absolutely right on the canards…and as a general concept it’s probably not the best idea, but unless his comment is based on a lot of experience of actually trying to play around with that type of geometry and various materials I’d take it with a grain of salt. Because without actually being able to quantify the specific dB hit and at what aspects, it could be one of those things that could be totally correct but still irrelevant.
Don’t get me wrong..from a ship IAMD perspective I’d love for the thing to be a 747 on radar, but I wouldn’t bet on it.