Adjusting a ShredReady helmet

My SR helmet seems to be the right size, but it keeps rotating forward over my eyes and obstructing my view. I look like Beetle Bailey.
I’ve tried adjusting the straps to make them shorter in the back/longer in the front, but that only helps marginally.
Any suggestions? For example, can I add some sort of fit pads in the top of the helmet?
Thanks!

Here is a link from a local (to me) shop:
http://theriverstore.com/shred-ready-helmet-fitting

Does also say that if you have a local kayak shop that carries Shred Ready, you might be able to pay them to do the fitting for you if you would prefer to g that route.