I have come back to Swype.I have SwiftKey Flow a great chance but with so many big issues I will have to wait for future updates of it.
-Can't flow double letter words like too or bee.
-Doesn't flow in Search bars and URLs. By forcing me to type gives up the user experience of the flow. Swype hit that perfectly.
-Flow full sentences does not work all the time. It will forget what you typed and then you are left with nothing for all your work.
Swype has been my go to keyboard since the Samsung Omnia and the very first beta released for Windows mobile.