Of course I do, I watch this episode more than any other (at least 4 times in the last month as i replaced the DVD sound mix with the laserdisc in a digital video file).I should have been more clear, so here goes.![]()
Does no one but me recall this shot?

The dialog doesn't support using a tractor beam and moving starfields aren't consistent enough to gauge what's happening. It often looks the same whether the Enterprise is at warp or impulse (Elann of Troyius is filled with this). Even when the Enterprise is being pulled into the PK, the starfield is moving in one direction, with the Enterprise going backwards, when it should probably be stationary. Why would the PK need to be moving forward when it has the Enterprise trapped? In fact, when the Constellation is approaching them, the stars are moving towards the screen now. So we can discount background movement.
But okay, for the sake of argument, allowing the tractor beam is on for that brief shot, it's the last shot we see before Spock calls red alert. The time it takes for McCoy and Decker to get off the pad and up to the bridge is more than enough for the Enterprise to cut the beam and move away from the Constellation. The next time we see the Enterprise, it's not towing the Constellation. If they used this shot again, I'd concede the point. Further, nobody on that ship reacts physically when the Enterprise is knocked away. Nor do we see the Constellation as the Enterprise is knocked to the side. So there's one single shot possibly suggesting the Constellation is being towed, but a lot more evidence that it's not when the PK attacks.