I'm not real big on climbing sticks, either, but they have their place in my arsenal for aerial assaults. I have used bolts and drilled holes. They certainly do work, but I very much prefer screw-in steps. The difference in the amount of time it takes to screw in a step vs. drilling a hole and inserting a bolt is negligible, especially if you have one of these.
The Ultimate Tree Step Tool
I bought one about 5 years ago and have used the piss out of it since. Saves time, wear and tear on my arms, shoulders, and hands, and aids in removing steps just the same. A bargain at twice the price.
I have used some of the same trees for as much as 5 years in a row. I can leave screw in steps in a tree for about three seasons before they have to be moved because the tree is growing around them. If you leave bolts in a tree for more than a season you will likely not get them out.
If I'm hunting a place only once or setting up for temporary observation only and cannot use a climbing stand, I will use LW sticks and Alpha.