OK Gap,
I will contact Vecko and see if (based on historical data) he can be interested on finetuning the max depth/damage values.
The Beauty of his mod is the relative accessibility/simplicity, indeed nobody Needs another mod if ist just a variant.(if I ever manage it)
I changed all CFG SIM ZON files as also TDW mentioned, but did not manage to be able to "cruize" at 204plus meter without taking serious damage.
I set all to 500m (exaggerated even if some multiplicator is considered, but ist to notice a difference) and still got:
1. Hydrophone damage, then inop at about 100m.(?)
2. 204m:

press hull damage and flooding and Torpedo Computer damage.
3. Hull integrety loss from 360m, till 100 pct.
4. Death Screen at 460m. (shortly after hull integrety at 100 pct)
Maybe I have to Change the depth in which the different Systems fail as well, via 'Crash Depth' property.
I will take a Long and good look at your Explanation above Gap, and yes I did check all your links before, just a bit thick in the skull
Trebb.