The RadToolTipManager does not provide the functionality you request and you are the first one who asks for it. Basically, we can provide you with some relevant code but it will use private methods which is not desirable because can lead to problems if it changes on our side later and also I believe that there could be a much better solution for the case.
However, in order to be able to provide an adequate solution, we should first find out what is actually happening in your demo and causes this beahvior. Possible reasons could be incorrect ajaxifying, clearing the targets controls in at a wrong point, setting AutoTooltipify to true, etc. This being said, I suggest that you prepare a very simple reproduction demo (use a fake programmatic datasource), open a new support ticket and send it to us and we will debug it on our side and we will provide you with the best and safe solution we could find.
the Telerik team
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