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Basic problem is the Cup Insert is not attached securely. Found that out 3 years ago when a full bottle of water tilted with the insert in a 1+ g stop and spilled water all over. Glued the insert to the base and a snug bottle holds in 1+ g stops and turns.
Recently found an even easier way to accomplish and make the holder recess deeper! Remove the ~3/32 thick rubber pad below the insert. It just pulls out, it's not attached. Then I used UV activated plastic adhesive to make a fillet from insert to the bottom; then turn on the UV light.
Made my bottle snug with the soft side of Velcro and a few felt pads. Always have water in the Vette when I drive.
Bottle Fits Tight but Insert Tilted Upon a Fast Stop-Water All Over!
Removed the ~3/32 thick rubber pad below the insert and used UV activated plastic to make a fillet from insert to bottom. Full bottle holds in 1+ g stops and turns.
Basic problem is the Cup Insert is not attached securely. Found that out 3 years ago when a full bottle of water tilted with the insert in a 1+ g stop and spilled water all over. Glued the insert to the base and a snug bottle holds in 1+ g stops and turns.
Nice. I spilled coffee in mine only a month old. I was soo pissed. Time to secure the insert.