My comments were not targetted at Savi - just to clear that up.
I've done some due dillegence on Savi recently and they do have some very experienced traders working with them trading very respectable size, they also are very upfront and 'fair' when it comes to what is expected and how size/limits are raised, this is in complete contrast to one of their rivals that will keep you on a 1 lot regardless of how well you do before you eventually get frustrated, perhaps have a couple of down days and it is back to the sim, depsite perhaps having an account that is up a few grand already - with savi you would actually be on 3-4 lots by that time.