There is no difference between practice and real accounts.
CFD providers also have no interest in hunting stops or slowing down data feeds simply because if they did, it would create arbitrage opportunities for traders who know what they are doing. eg. If data was slow, would follow the real market and know whats happening in advance. With hunting stops, again if their feed deviated from the real market you could just buy the lowest and sell the highest in the real market for risk free profit.
Market Makers simply make money by providing people new to the markets crazy leverage, and wide spreads. For example in crude oil, if you are constantly giving up $80 per contract trading on a daily basis you cant expect to survive, when in the underlying you would be paying around $4. Multiply the $76 difference by 200 trading days a year and you can see CFDs are the most expensive instrument available.
