So, although the tube trap is effective - it doesn’t matter if you can’t set it, OR, release it. So I’ve resorted to the squirrelinator. It is a capture and dunk type that I got about a year ago, but never caught anything iin it. I have to do something because I’m seeing baby squirrels and nothing is preying on them, and the population is increasing.
I tried it again because it is working for some folks, so hey, gotta do something. Yesterday I caught 1. Today I caught 2 - at the same time! Not fun, but encouraged I can start reducing the population some.
Maybe this is just a good time of year to do this since there is not a lot of food around. Like others mentioned on this forum, seems it is best to keep this activity going. 
I have a large trap for raccoons which I probably should start using. Do they hibernate? Is this a good time to trap them?