I'm about to pick a unlined fretless MIJ Fender Jazz. To someone who's pretty much always played fretted instruments exclusively, this is a little daunting. I was just wondering if any of you had any tips for getting acquainted with an unlined fretless. No need to mention practice, I'm prepared to do a lot of that! Anything else to help the transition would helpful. Techniques, approaches, exercises, all would be appreciated.