JB weld, flex seal or full rebuild ?

I would disregard my 2nd ring gap statement but I found this may have been why I did mine.
(Quoted) The larger second gap nowadays is not a fad. There are people with a lot more knowledge of the subject (and oem manufacturers also). Engine masters also. It's trickled down from the high eng race teams. It's to aid in controlling/preventing top ring flutter/unseating from pressure built up between the top and second ring.