Actually, sense I posted the first message, I've gotten a lot better.
the OC straps can be pointed forward, rather than one whole on each
side for the bolts, there are three, so I can get an angle out of
them.

Also, my girlfriend noticed that I tend to lean over while I board.
After she pointed that out, I've tried to keep myself centered. That
works a lot better.

Now, my only problem is that my speed gets so intense, I bail.

I did find some more gradual, less insane dunes that are a bit more
suited for the 105. they are also a whole heck of a lot easier to
clime.