So what's your favorite way to handle a real-live jack in the box? I've usually rented the little shit tool from the parts store.... I was checking into just buying one for myself and I stumbles across this little joy. https://www.harborfreight.com/single-action-strut-spring-compressor-43753.html It's twice as much, but does it make the job of compressing a spring twice as easy? I can also buy the standard parts store tool. But, I'm tired of renting the tool not knowing what's going to be missing, which bolt for it will be stripped, etc., so I'd like to invest in my own tool for the future.