To me the plans are too structured and demanding. If followed them to a tee I'd feel like I wasn't on vacation, but on a trek through the jungle for a neverending quest or something. So instead I always check out a few guides from the library, this year I'll check out one, and I'm trying tourguidemike, and then combine them around things I know I want to do with my group, along with the restaurants we want to hit, based on any priority seatings we may have, parades we want to hit, shows etc. We always log in pool breaks, mini golf time, spa, etc. Its rare we spend the whole day in one park, I'm a big park hopper, mk in the morning, lunch at mgm, epcot for the evening...but these are sort of planned, modified of course if we show up at mk and find ridiculous crowds. We'll just switch and do epcot for the am and come back to the mk in the afternoon, swapping our tour plans for alternate days.
With that said this probably takes a bit of extra pre-planning, but that's the fun of it, and you also have to be prepared to scrap a plan altogether an not worry about it, sometimes the unplanned excursion is the best day of the trip. I've gone with people who can't handle not following 'the plans'. If that's the case you are probably better off not having one to begin with, as things always happen. I also have to say I'm a city planner by profession. I plan, sometimes to a fault. I have lists to remind myself to make lists, lol. I enjoy vacation planning, and wdw provides the ultimate in pre vacation planning, that's why I utilize several touring plans and make my own. But I think that you get the best touring plans that way. Following a pre-made one isn't personalized, it isn't you and your group.