First what do you want to use the SUP for?
Big waves, small waves, longboard riding or a shortboard feel?
If the 11'6 is around the size you are wanting then maybe try the 11'2 Starboard?
This board has heeps of soul and is directed towards the longboard style with nose riding ability. Its 30" wide which makes for a super stable platform.
Where abouts are you? I have the 11'2 and 9'8 Starboards if you want to give them a try?
There is a SUP forum on this website.
www.seabreeze.com.au/forums/default.asp?CAT_ID=10
Ask there and there will be someone that can help you more