Hi in regards to DSLRs, we actually didnt even use a Cinestyle mode for the 7D...to get the best results try setting the ISO on multiples of 320, going into Natural picture mode and turning the sharpness and contrast way way down, and the saturation down a bit. Because these cameras do not currently have the latitude of an Alexa or F3, you need to add some fill light and make sure they never blow out the highlights too heavily.
As all film-makers know, a dolly is great way to achieve smooth shots in a film. This tutorial video was made to show our clients how to properly set up this specific Indie-Dolly System not how to achieve specific dolly shots. Thank you for you question.
It's up to you...usually the decision is based on the tripod you are using. If you are using a sliding tripod plate like on a Bogen, you'll probably have the adapter upside down. If you are using a quick release plate like a Sachtler you can bottom mount it. The rails also play a role...I've heard with Zacuto rails it doesn't make a difference which way.