only in my 2nd season. My first board was the 160L Funster and i went down to 110L Naish Koncept. If had my time over again i would probably go for a 120L and then a 92L FSW which is what i have now. though the 110L is pretty versatile in anything up to 22knts with a good ail range 5m - 7.5m. there's not really any shops in the shire. when you have some time go to wind surf n snow at collaroy. any of the staff will be happy to advise you and recommend equipment and they have stacks of 2nd hand gear. go in the morning on a non-windy day if you can. weight=board size is an OK comparison. These days you can up the volume for a wave board because of the multi fins (amongst other reasons). some of the bigger guys are using up to 100lt for quads. Also the sails have a bigger wind range, you won't see much bigger than a 5.7 in the waves but some loonies will be on a 7.0+ in 25 knots at Botany and loving it! best advice for Sydney when you are more competent is a 100-120lt for flat and a 90-100lt wave for your size. I'm about 83kg and use my 90lt on flatwater & in marginal 15-18 knots in the surf - we get that a lot!