I am currently building an extending dining table with two main halves 3' x 2' and 2 leaves 3'x 12". I was considering using Figure 8 tabletop fasteners to attach the main halves to the apron. I was wondering if the 24" of end grain (main panels) was too much distance for this type of fastener. I am aware of trimming the corners of each mortice to allow for the fasteners to swing. I noticed on another site that someone felt that 18" was the max for these. Any thoughts? Thanks