I totally feel your pain! I used to use flimsy sticks until my heavy rig almost did a faceplant in the mud. Terrifying! I swapped to the Leofoto LS-324C Ranger Series Carbon Fiber Tripod with a Leofoto LH-40 Low Profile Ball Head and honestly it wont budge even with big glass. Quick tips:

• Hang your bag from the center hook for stability
• Keep the center column down in high wind This thing is a beast!

Look, if you're worried about your rig tipping, you need to ignore the ultra-light travel stuff and look at something with a bit more girth in the top casting. I've been using the Benro Mach3 2 Series Carbon Fiber Tripod TMA28C for a couple years and its been solid. The balance between being light enough for a trek and having enough rigidity to handle heavy glass without the legs flexing is spot on. For the head, you really can't skimp if you want to avoid that annoying frame shift after you tighten the knob. I'd pair those legs with the Benro B2 Double Action Ball Head. Having separate friction control is basically essential for heavier setups; it prevents the camera from flopping over the second you loosen the main lock. Total cost should land right around $400 or so. One practical tip tho... if it's windy, don't just rely on the carbon fiber dampening. Use the hook on the center column to hang your camera bag. This lowers the center of gravity and makes the whole setup way more stable than the tripod alone. Just make sure the bag is just touching the ground so it doesn't swing and actually cause more vibrations. It's a reliable way to keep that R6 setup safe while you're out in the elements.

Saw this while browsing today. I went the carbon fiber route too and havent looked back. One big warning tho... watch out for those skinny four-section legs. They look compact for hiking but get real wobbly when you extend that last thin section. I almost lost a lens because I trusted a cheap twist lock that felt tight but actually slipped under load. Just make sure the leg diameter is beefy enough.