man that wedding panic is real, been there before and its the worst feeling. heavy duty doesnt mean better with gimbals, especially if the motors are overpowering the actual weight of the body. watch out for these traps:

• dont just look at max payload specs, payload distribution matters way more
• avoid generic brands off amazon with zero customer support when something snaps
• make sure your quick release plate isnt sliding around, even a millimeter of play ruins everything if you are trying to stay under seven hundred bucks, look into the standard DJI RS 3 instead of going full pro spec. its way easier to balance on the fly and wont kill your forearms by hour three of a reception. just test it thoroughly before friday so you arent scrambling on location.

First off, just breathe, weddings are stressful enough without gear melting down. That twitching happens because oversized gimbals have motors that are way too strong for a lighter payload, making them over-correct constantly. For a proper fix under your budget, I would suggest grabbing the DJI RS 3 Pro Combo if you can stretch slightly, or sticking right around your limit with the DJI RS 3 3-Axis Gimbal Stabilizer. It handles up to 6.6 pounds, which is plenty for most standard setups. Make sure to lock every axis individually while balancing before powering it on, otherwise you'll burn out the new motors too. Be careful with counterweights if you use anamorphic glass, but honestly the RS3 should sort you right out before Friday.