I have an 05 250 ETEC and when I come off plane and come out of the hot foot completely and the engine rpms drop rapidly I notice the engine jerks at different intervals until it returns back to an idle. The engine doesn't do it on acceleration or running at top end. I spoke to a mech at my 3yr service interval and the only thing he could think was a rev limiter was kicking in when I come completely out it. Does anyone else experience this or have any idea what may be causing it?