I ran into the same issue as others have, that sinking feeling and the feel of ripped material under the bottom of the seat. I decided that since the time is also coming where I’ll need new leather covers, but not now, to perform a support and zip tie operation. I cut an plastic lawn sign it to fit under the seat foam and secured it as others have with zip ties. I added a few side support points. Feeling certain that both my 200 lbs weight and my driving style would cause those zip ties to pull through the plastic sign, I decided to weave zip ties across the bottom of the plastic support piece in a zip tie webbing fashion. It should hold up for a while. Also, no need to disconnect the battery to avoid an air bag warning light. Just take the key out of the ignition before you disconnect the wiring harness under the seat. That can be easily accomplished by using a 6” piece of 2x4 lumber to prop up the seat (after unbolting) twisting the connector counter-clockwise 45 degrees to detach from the frame and on the passenger side of the connector, pulling a clip on the connector in the direction of the passenger side of the car thus freeing the plug which then easily pulls out.
