Exactly as AA just stated it

The naish sits really low in the water, the Psh feels a bit more floaty.
I actually thought Robdogs Psh was a tiny bit more stable than the Naish , and was probably a bit more drivey and faster down the line, the naish seemed to turn tighter arcs, could be the small fins I had in mine. Both great boards either way, 10 outa 10 for both for my 2c worth