Hi Billygoat.
If you are interested in trying before you buy and are able to make the trip 2.5 hours south of Sydney to the Jervis Bay region you can try before you buy.
We have a range of Underground boards and other brands as well you can test, at most price points.
Feel free to contact me via e-mail
dave@machelp.com.au or phone 02 4443 7665 if you would like further info. I can give you some instruction with your Aero as well if you need it.
Look forward to having fun, it's a great sport, but take care, Dave (Dr Surf Australia)