There are a few local professionals that are coming to me for TGM based instruction. I've found a common thread of misconception with them and with others that are trying to hit.
Depending on the use of 10-5-A versus 10-5-E, the look of the clubface at top can be different. Angled hinging is the "feel" of no roll. But, hitters still have turn and roll. Understand that the geometry of a hitter and swinger at top are the same. This should give you a different perspective when looking at the clubface. A swinger continues to End to load the pressure on the top of the shaft, where the hitter stops at Top (right shoulder high and on plane) to load the pressure on the back of the shaft. In all cases, the left palm will lay flat to the plane at top for both. Additionally, the right forearm flying wedge will support the loading. As a result, the leading edge of the clubface will be parallel to the baseline of the selected plane (10-5-A or 10-5-E). Can a hitter look slightly more closed at top than a swinger? If the clubface was in an open alignment to prepare for horizontal hinging (swinging) or closed to prepare for angled hinging (hitting), there should be a slight difference at top.
The hitter will have a very gradual turn from start up to top and will have a very gradual roll from start down to follow through (no roll feel). Angled hinging is caused by the drive out of the right arm. The difference is that a swinger lays his left palm on plane in start up, using a start up swivel. This difference is the preparation for the release swivel, which will be the mirror of the start up swivel.
Moral of the story: Don’t mistake a clubface that looks slightly closed at top as the result of no turn. It’s the product of the clubface alignment at address and can be affected by the chosen plane.