Yes, congrats on the new future knife knut!!
As a general rule (not a 100%, always true rule) a honesuki is typically going to be very asymmetrically ground.....a lot of petty's are asymetrically ground as well, but not typically so much so as a honesuki.
Additionally, a petty is often times ground a little thinner at the edge than a honesuki. A little, not much.
A petty is a little more versatile than a honesuki IMHO, but I do use a honesuki for a lot of "mundane" tasks like I would normally use a petty.
If you're interested in a honesuki, I would try one....it's a fun knife to have.