In the second vid it looks like you could use more weight. You are deffinitly charging the wake, thats for sure. I think that you would be able to take it up more than out with more of a wake. Overall not too shabby though.
If you have a fat seat in the back then add a 400 or 500 bag up front then two more on either side of the motor. This will give you the best wake possible. Basically if theres floor space put some ballast on it.