Car is definitely driving better and smoother.
I was pretty sure of the reason for using a trickle charge when loading the file but wanted to be sure. Almost hesitant to even dink with it now since it is running good, but CV and JHM have assured me its a good thing to go ahead with.
The boot/hose is fastened as good as it can be with a proper clamp. I doubt zip ties will offer any better clamping force than current setup. Just need to periodically make sure it is secure. Easy enough.