As we discuss this, it occurs to me that it might be worth making explicit some subtle difference we may not have made clear.
First, it is important for everyone, at least beyond the newbie (very beginner) level, to understand what the postures mean in order to be able to do them correctly and with the requisite detail. Most teaching will cover this eventually as a matter of course.
Second, there are certain minor requirements of the form that are easy to overlook or that might not make sense, unless you understand the applications _(e.g., the rightward glance preceding White Crane Spreads Wings).
Third, there are certain applications that may be inherent in certain postures, but which are given no outward expression. It may, nevertheless, be beneficial for some practitioners to be mindful of these as they do the form (e.g., Press in Parting Wild Horse's Mane). In other words, there is no special outward acknowledgment, but maybe you do something internally.
Fourth, there are other applications that that may be inherent options in certain postures or transition, but which are best not expressed externally or internally every time you practice the form (e.g., replacing the An/Push of Grasp Sparrow's Tail with Kao/Shoulder Stroke.
<font face="Verdana, Arial" size="2">I see now that kao has uses other than just "bumping" an opponent. </font>
I am curious what you mean by this. Are using Kao to give you sense of the uses of the torso? By the way, the translation of Kao that I settled on for the moment is "bump up against." As you know, many do not know that the Chinese word has no meaning or connotation of "shoulder" in it at all. The term "shoulder stroke" is therefore misleading.
<font face="Verdana, Arial" size="2">I was wondering where else Press energy might come into play that I am most likely missing?</font>
I don't think I know much about hidden instances of Press, but where it does cross my mind from time to time doing form is in White Crane Spreads Wings, Deflect Downward Parry and Punch, Fist Under Elbow, and Parting Wild Horses Mane.