Trouble recording 25% fill in an action

Question

When recording an action, layer fill can be set as a numerical field, however the value is not recorded in the action despite the value actually being set.
To duplicate:
Open a documnet using Mac OS 10.7.3
start recording an action
duplicate Background as a new layer
set the layer to Fill: 25% by highlighting "100" in the Fill field and entering "25" from the keyboard.
select Background or stop recording to commit the change.
Notice that the layer has really been set to Fill: 25%, but it has not been recorded.  This behavior also existed in CS5, and leads to unexpected results when recording actions.
Again open a document using OS 10.7.3
start recording an action
duplicate Background as a a new layer
try to set the layer to Fill: 25% using the slider with the mouse
Neither 25% nor 75% can be reached with the slider using the mouse.  A number entered with the slider WILL be recorded in an action, however because the slider window is exactly 99 pixels wide, two states, 25 and 75, do not exist.  Also in setting points in "curves" using a mouse, the graph is 254 pixels wide rather than 256, so a couple colors are inaccessible.
Work around:  to record 25% you MUST enter 25 numerically and then hit "enter" or select another tool before doing anything else.
Expected behavior:  For an action to record an opacity change that actually happens in real time.  Further it would be great if the slider bar could reach all integer states available numerically.

Answer 1

I seem to recall that changed in a previous version of photoshop, maybe because the action would record the first number one would type.
For example if you wanted 25% fill opacity the action would record 2% and 25%, so having to hit the enter key ensures just one value gets recorded.
I just got in a habit of double clicking the layer thumbnail and setting the fill opacity in the layer styles dialog when recording actions.
Also that was the only way to set the fill opacity in photoshop 6.