Ok, I talked with Lee again, telling them that Titan did in fact list the 11L and 14L, and that they might want to get them to correct the info. The printed version of the Loadmaster instructions that I have only lists the 11L as the proper choice. I do not know what any possible newer Lee digital instructions or website reference may say. The person checked off of the phone line with some of the other tech staff. What they told her is that the 11L is the preferred default Shell Plate, but some brands or lots of brass could require using the alternate 14L and that the determining factor is rim thickness.
Danny