* I am also a beginner and did some research too from some places, friends, stores and here...
Most ppl will tell you best would be between your nose and your chin would perfect.
I am about 5'6" and I got a 152 cm board it levels around my nose. I wanted to get something shorter (for better control) but unfortunately for me 152 was the only size and the price was perfect.
I know at least 2 guys @ work that are like 6'3" or and they have 155cm boards I was like wtf! They want to be able to control more than going fast... Plus they feel comfortable with it...
Maybe next year when I am better I might get a 146-150 board...
When I was renting I was using 150 I think...
Oh I guess you drive an RSX?