Hi Richard!
I'm sure you must be so excited knowing you will be at
Walt Disney World Resort at the end of the week!
It sounds like you are familiar with the
Walt Disney World Resort Property Rules. Prohibited items include: "selfie sticks, hand-held extension poles for cameras or mobile devices..." However, at this time, stabilizers are permitted. Based on your description, it sounds like your grip is allowed in the theme parks. Upon arriving at the security entrance at each theme park, a Cast Member will take a look at the handle to ensure it fits within the guidelines.
I love how thorough you are being with your planning. As I'm sure you know, you will have plenty of photo and video opportunities when you are at Walt Disney World Resort.
Star Wars: Galaxy's Edge opened on August 29, 2019, the
Epcot International Food & Wine Festival is August 29 - November 23, 2019,
Epcot Forever debuted on October 1, 2019 and there are breathtaking views from the
Disney Skyliner! Oh my goodness! I'm so excited for you!!!
Thanks so much for sharing your question with the Disney Parks Moms Panel! Have a magical vacation filled with picture perfect memories!
Kari