Long Story Short
Made exact copies of the Quandl csv data and stored it on my dropbox. When I run backtests on the same date, the results are different if fetching from Quandl or Fetching from dropbox.
Quandl +7.2
Dropbox -2.1
dropbox format 'https://dl.dropboxusercontent.com/s/3fslcgbhzi9ld9p/v1.csv'