The lock M. bit is one of the hardest bit to setup and use, it needs that very fine edge on all the parts, if it's off by just a little you just made some fire wood, the drawer needs to be dead on, with the Through-dovetails all that's needed is to cut the parts for the drawer to fit in the hole..put the dovetails in place and you are done and it's very strong ,many don't like to see the dovetails of the front side of the drawer but a easy fix with the same stock as the panels/doors etc.glued/screw to the front side of the drawers, no need to use the best high end wood for the drawers, many like to see a overlay on the drawers and by using the glue and screw way it's a easy job,,keep it in the KISS way..
once the drawer box is in the hole it's easy job to put the fronts on..unlike the blind or the M.L. way..
Don't forget about the drawer guides if you going to use them,they need room in the hole to work ,that's why you need to use the glue on fronts the norm.
Hey Bob J.... This might sound stupid, but.............
what is the reason you would not use these bits for drawer boxes ? I thought I saw some bits from Amana that were made for that. Or we talking about two different bits ? I have a porter cable dove tail jig, but the set up time varies from quick to " I think its nap time." The stock has to centered between the fingers, or the off set will be off. That's why I thought it would be quicker to rout the stock and then cut it to size. ( My boss wants a lot of different size drawers in her cabinets. )