Re: Buying a new wakeboard
You don't need a new board. Size may be a little on the large side for you, but definately not out of the realm of what you shoudl be riding.
Just out of curiousity, which Hyperlite are you riding?
However, if you would like to make a little more investment into your hobby just because you want to, you have probably spent enough time behind your boat to know your board, how it cuts, how it feels coming off the wake. Now is the time to get out with others and try their boards. You will get a chance to feel different rockers, sizes, bindings, etc and see what you like the best.
Being comfortable will help your progression. I was in a similar boat as you, and I tried a Hyperlite Murray... well I loved its control and soft landings. So, I bought one and haven't regretted it since, but it wasn't neccessary. Fun fact here is that I ride a 140, 6'0" 215, but was riding a 142 Hyperlite Apex... the Murray is shorter, lighter, but has more surface area, more pop, softer landings, but is not as fast due to the hybrid rocker line.
There are a lot of shapes out there, and lots of things to experience before you purchase another one. The good news is with a Hyperlite board, it will last you for some tiem to come if you decide to hang on to it.