Not keen on Mystic?
The Shadow is awesome for waves - super soft, light weight and has cut-outs on the bottom so you can move your lower body...
I've ridden with a Dak Pyro and it's super stiff - wouldn't be too good in the waves at all...
Dakine Renegades are good - it's REALLY soft and doesn't quite have the finish that the Mystic does - plus the clicker system is awesome on all Mystic harnesses.
Disclaimer - I sell all of these harnesses...
+1 for the hummer. I use mine just for freeriding and it will freely rotate around if you want to ride toeside. Super wide and comfortable and really well built.
Whatever shop you bought it from should swop it for something your comfy in. If they dont, name and shame!!