I took about a half hour last night to try and install my third spare bench seat, but wound up having similar problems as the first one: The bench is aligned too far to the left, so the catches don’t meet the pins at the base of the wheel wells. With the third seat, I can probably adjust the lateral travel (side to side) and bang the catches outboard with a hammer, which might give me enough room to center the seat and meet the pins. If all else fails, I can go back to the original bench, but my reason for pulling it was its lovely pillow-top vinyl design and busted zippers.
The other thing I found out was that I installed the Tuffy console too far back, so the fold-and-tumble is more like a fold-and-lean. So I’ll have to consider drilling new holes sometime in the future.