Habitation and Time Ticks

I have a couple of questions around a similar theme. Basically I'm trying to come up with a formula to determine a rough time range for when an area was last frequented by another player.
Sorry, I'm having a hard time wording my goals here, I've tried to type it up a couple of different ways and it still should convoluted as hell. Let me try to explain a bit more.
Correct me if I'm wrong here but, I believe:
Planted tree to grow full size: 7 Days
Skins to dry on a rack: 8 Hours
So if you came upon a base and you found dry skins but small tree you could make an assumption that the last time a person used this base was between >8 hours but <7 days ago.
Another example is that if it takes 60 days for a claim to expire from a full bar, presumably it's start, any claim you find you can assume it was visited at most 59 days ago, putting an upper limit on the time frame
I'm looking for ways to reduce the variables (and not rely on drying racks and trees). Some specific questions I've had on this theme are:
How long does it take for a cut stump to turn into a hollow stump?
How long does it take for a cut log to turn into a hollow log?
How long does it take for blackberries to regenerate?
Secondly I'm trying to figure if there are any indicators to give you an idea to the frequency a plot of land is visited in absence of a base.
Specific questions on this would be:
Is how filled hollow stump are an indication of how often the areas is loaded and thus visited?
If players tend to gather up all granite boulders does finding several granite boulders in an area indicate the absence of players (or at least mid level and higher players)?
Thanks in advance to those of you who can help refine my formula.
Sorry, I'm having a hard time wording my goals here, I've tried to type it up a couple of different ways and it still should convoluted as hell. Let me try to explain a bit more.
Correct me if I'm wrong here but, I believe:
Planted tree to grow full size: 7 Days
Skins to dry on a rack: 8 Hours
So if you came upon a base and you found dry skins but small tree you could make an assumption that the last time a person used this base was between >8 hours but <7 days ago.
Another example is that if it takes 60 days for a claim to expire from a full bar, presumably it's start, any claim you find you can assume it was visited at most 59 days ago, putting an upper limit on the time frame
I'm looking for ways to reduce the variables (and not rely on drying racks and trees). Some specific questions I've had on this theme are:
How long does it take for a cut stump to turn into a hollow stump?
How long does it take for a cut log to turn into a hollow log?
How long does it take for blackberries to regenerate?
Secondly I'm trying to figure if there are any indicators to give you an idea to the frequency a plot of land is visited in absence of a base.
Specific questions on this would be:
Is how filled hollow stump are an indication of how often the areas is loaded and thus visited?
If players tend to gather up all granite boulders does finding several granite boulders in an area indicate the absence of players (or at least mid level and higher players)?
Thanks in advance to those of you who can help refine my formula.