Late last week, as I was spending more time in the adjoining static C2, I began to be concerned that fate or bad luck or both would shut me out of my "Home" W-space system. Regardless of how closely and carefully I monitored mass restriction/consumption and the WH timer, with both my main and alt in a different system than my POS, it was very feasible to lose the WH entrance and thus lose the POS.
So, I decided to train up a new scanning alt, to be deposited and logged off at the POS indefinitely. It took less than 72 hours to get a decently trained toon up to Imicus + Expanded Probe Launcher + Astronomics 4 + all other probing skills to 3+.
Once I did that, I flew the toon into the most recent lowsec entrance and parked it at the POS, then logged off.
Now, if I happen to lose that WH back to my POS system, I can always scan my way out (both fit standard launchers) and the new scanning toon can separately locate the next static LowSec exit/entrance.
Considerably less angst over losing the WH now - feels like a weight off the proverbial shoulders.