wow according to this: https://www.metatrader5.com/en/terminal/help/general_concept
tp seems like a kind of stop order to guarantee complete fills I guess so your right tp can have slippage. I don't like that.
sometimes the trades just miss the TP by 1 point. what can we do to exit with more pips?
maybe thats why a second exit (not SL exit) will make the EA more profitable?