Hi tutahi
I am around 105kg as well,my first board was an AIRUSH SWITCH 155,I now have a LF WLF 140 great board, a lot lighter & a lot better for carving & holding an edge.
It is a nice wide board but the foot straps are offset to the heal side.
A mate of mine weighs about the same and he has a FLX 142, he likes his board too.
Best bet is try to demo or borrow someone else's board.

I'd go the 152 in the FLX .I'm 97 kg and its my fave board .I started out with the 04 142 but the 152 gives me more bottom end and does not feel too big(having also had the 132 as a higher wind board)

Cheers

lach