I've had an Eclipse 159 demoboard. I've used it a couple of weeks. I'm also about 73 kilo's.
For me the board is still too big to be able to control the power of my Rhino's(16 + 9.3). For light/medium wind it's OK.
I got a Slingshot Drake (147 by 37cm) now and absolutely love it.(don't tell my wife
I can control the power of my Rhino's with it and it gives more control in waves. The Drake also feels very skaty.