There is not a always a direct correlation between these two factors, HG MOT Div. has a Stack Value (5) and an initial strength of (19), 26th Pz Div. has a Stack Value (4) and initial strength (14), 29th MOT Div. has Stack Value (3) and also an initial strength also (14). 305th INF Div. also has a Stack Value of (3), but a strength of only (9).
Motorised units are likely to have a greater Stack Value, as having a significant number vehicles will increase the unit's footprint in terms of filling the terrain, but GER 1st FsJ has a Stack Value (5), which seems a lot for a unit which should be light on vehicles and a strength of (15), which reflects the fighting power of the paratroops.
As a unit takes losses the strength points reduce, but the Stack Value stays the same.
This makes some sense, as the unit size (Stack Value) shows the unit's potential, whereas the available strength points show how much of the unit's power is actually ready to fight. This is all probably WAD, but does it need to be adjusted.
The manual confirms that the Stacking Value represents the physical size of the unit, but when a unit has been significantly reduced by losses, then the Stacking Value should also reduce, especially when a unit is reduced in strength and stays that way, because of lack of replacements.
If GER 1st FsJ Div. is reduced to strength (1) and there are no replacements, which is likely, it still retains its Stack Value of (5), which means that other units cannot be placed in the same mountain hex, where the stacking limit is (5), but the FsJ would no longer have their original physical size to justify their Stack Value.
Again from the Manual : 'Friendly units can also block movement due to their occupation of a hex that cannot otherwise be entered due to stacking limitations'. - So a unit reduced in size by heavy losses could still block a hex for other friendly units to move through.
Stacking Value is also used to calculate Allied amphibious transport capacity, but units are usually at full strength at that stage of the game and I am not sure you would want to amphibiously move a unit with heavy losses, but still, Stacking Value should reflect the actual size of the unit, if it has been reduced significantly.
I am not proposing a direct correlation, between Stack Value and strength points, as there is need for variation, but there should be some dynamic adjustment of Stack Value to reflect large losses of strength. The game makes dynamic adjustments in the case of units capability for generating an LOC, which is changed when a unit is forced to retreat, likewise, when strength changes by certain limits the Stack Value should change also.
