Hi Mike, It's the Marine version, seemed like a no brainer as it's hardly any dearer and claims to be better. Did you ever try the Classic version?
Here is todays dumb error. The last piece I've built is the base for the rear seat, a simple structure of 4 parts, however the brackets seemed to be inaccurate resulting in the two main parts not being at 90 degrees to each other so I fixed it! Unfortunately when the glue dried and I tried fitting the assembled part to the boat I found it was never supposed to be square, doh!
Here is the part after cutting the glue line and resetting the angle to what Amati intended.