What I find interesting about Oaks is their role at different times of the year for deer. I pay close attention to the ones in the woods I hunt. I've got red, white,pin, chestnut and (I think) black.
The deer will walk over the reds and chestnut oaks in the early season to get to the white and pin nuts, but right now they're tearing up the ground getting to the red's and black oak left.

I can go to a red oak standin December after the preferred mast is goneand know that the deer have been feeding there. It's almost like they left it for winter feeding on purpose.

It's something to watch if you have multiple oak types where you hunt.

After that "ramble"......Ah!!! Oh,Yeah. I spiked some trees about 4 years ago. I didn't see much difference but the trees I spiked were on a ridge that usually produces pretty well as long as there's enough rain that year.
The spikes are expensive but easy. Too much to do more than 2 or 3 good sized trees.