Poplar Whips and Wire

I have poplar whips which I wired in spring, before full bud break. I just removed these wires this week.
One of the whips is very wire scarred. I think it is going to go into the garden to grow to a point where its currently mangled trunk won't matter.
The other tree is fine. I took off the wire at the perfect time to keep the marking to a minimum, but the tree is holding its place.
The tree has grown one set of branch about 5-6 leaves before they were trimmed to two; then they have budded and leafed but are only at 2-3 leaves.

Wire off Chestnut

Took the wire of my horse chestnut today. The wire was just starting to dig in. What I liked was that the branches stayed where they were wired, they did not spring back.

Japanese Maple Seedling and Wire

I wired a two year old Japanese Maple seedling before bud break, back in February. Just a large piece of wire on the trunk, in a sort of S shape. Today I noticed a smidgen of wire biting, so I removed the wire. Where the wire touched the tree, the bark was grey. The tree also sprung back, or didn't take, about 35% of the bend.

Wires on Pines

I started to take the wire off my scotch pine, which I got in a workshop with David Rowe. The wire looked like it could be biting in. The wire was starting to cut in, but only barely and in only a few spots. It was, really, about the perfect time to remove them.

The small branches were happy, but the larger branches had not set. So I unwired the small branches, and left alone all the large branches I had not unwired. I used guy wire to resecure the branches had unwired.

How much time can you put into one bonsai?

What I mean is how much time can you spend refining a tree?
It takes alot of time to apply wire to every branch!
Before today I did not think it was worth it. However, I needed a small juniper branch to cover a very specific area on the tree. There were 15 branchlettes. I wired the branch to heck, and it did what I wanted it too.

Now I wonder how much more I can do with branches that don't need to be wired to the nines, but could be anyway.