[Yoda]

I find that when swinging it is much more difficult to sense the lag. Everything wants to straighten and I feel less control less lag.
Is this a result of swinging versus hitting?

The Swinger does not sense an active Lag Pressure Thrust because Centrifugal Force -- not Muscle Power -- is driving the Club. Therefore, Lag Pressure can be monitored only as the Centrifugal Pull of the Sweet Spot and the drag of the lagging Clubhead (10-19-C).

Then, per 6-C-2-A, it is this passive Clubhead Feel that is 'aimed' from The Top, i.e., directed either along ('Tracing') the Delivery Line (of the Clubhead) or down the Delivery Path (of the Hands).