My biggest concern is deer but there are so many commercial orchards and farm fields around that I'm hoping to luck out.
The problem with deer is the varied weather,,
you may get by for 5+ years, without a nibble,, then,, BANG, one dry year,, the deer eat EVERYTHING!!
After 35 years with the same shrubs, the deer ANNIHILATED them this past winter,,
the deer had trimmed them before,, but, this year,, it was devastation,,,
I had to replace 8 that had been there since 1982,,, I planted mostly holly types,, deer do not like to eat those.
You have to plan for the worst year, not the average year,,
the tubes sound expensive,, what is your effort,, and patience worth!!??