I started cutting mortises for my workbench legs and stretches yesterday and after making the 1st one I started to get nervous on how much material I was going to be removing. I drew up a full sized sketch to visualize the mortise cross-section (sorry it is on a scrap of rosin paper I had at hand). As the tenons are cut they are 3.5" long, 1.5" thick. My legs are 6" x 4 5/8". If I cut the mortises as planed it will end up with the two holes converging, leaving ~1" of the end of the side stretcher's tenon touching nothing. I suspect this isn't too big of a deal for side stretcher strength/racking but I also will end up with a 1.5" x 3 5/8" L cut out of the inside of the leg. I thought about cutting the tenons down to either the green 3" to ensure the mortises do not connect or just drop the side stretcher down to the blue 2 3/8" line which would but it up to the side of the front mortise. Knowing that a M&T gets its strength in the length I am hesitant of cutting them shorter. Am I making a mountain out of a mole hill here? Any suggestions?