Thanks Ronald, I've been using a trainer for almost 30 years and am tired of putting my bike on/off. Yes, I am started the process for a new bike, but "right now" I think a smart bike vs smart trainer is more what I'm looking for...I can change my mind :)
If you're back on a smart bike (Kickr Shift), I hope it works out! One reason for my original thinking on the Kickr Shift is having more people to help me learn, including my LBS, so I can ask questions just like your about "when to click it."
Thanks for your feedback.