There is a wealth of support for the Load-Master.
I got mine out this Spring after eight years or so. The last time I had used it, I had been ready to give up on it.
This time, I started with a complete disassembly and cleanup. Then, from links I found here, I watched the videos on youtube:
http://www.youtube.com/results?search_query=Lee+LoadMaster
Between these videos and the support / help videos found on the Lee site, you should be good to go--here's the Lee support / video page:
http://www.leeprecision.com/html/HelpVideos/video.html
I now have it running smoothly. I think there were a few things I figured out about its use:
1. Most people have trouble with consistent operation with both the primer feed and the case feed. The youtube videos go a long way towards solving all those problems. Pay close attention to the setup and lubrication techniques for the case feeder. The primer subsystem is the weak link, IMO. Personally, I would set it up for one primer size, and not change out routinely. And, the "shaker" technique is not long-term reliable, so be prepared to shake manually, or do parts replacement for the 'vibrator' function to work properly.
2. The second thing I did that helped a lot was change over the die sets to a five-die setup. That is, I do decapping only in station one, and resizing in station 2. The use of a resizing die in station two basically keeps alignment of the case so the primer feed works well.
3. I even added a bullet feeder, and tweaked that to get it running smoothly. However, I don't think it is a worthy addition--Wally's comment is that the bullet feed really isn't a time saver, and I concur.
4. Note that Lee has an upgrade kit for the powder measure, so that you can use the manual-pullback system for a (Lee) powder measure that has the spring-return operation. Again, following the youtube video, and the one at the Lee site, will help you with this. The positive-pullback feature is probably an important one. I use ONLY an adjustable charge bar, I have used it with AA 5, AA7, 231, TiteGroup, Power Pistol, V.N350, and it works fine with all of them--I can reliably make one-tenth grain adjustments. Only the fineness of #7 is problematic--that will leak, even with the upgrade to the latest Powder Measure version.
To run a Load-Master, you do need to be inclined to troubleshoot; you cannot just start pulling the handle. Given the price differential between it and the other high-volume presses, I'm willing to do that--and I like problem-solving like this anyway. One can easily run 300-400 rounds an hour through this machine, once it is running smoothly and if you are prepped to do it.
I will note that I have used it little recently. I don't consider a progressive press the best way to work up loads (load development, or small batches with different charges). If you shoot less than 200 rounds per week, keep in mind that a Lee turret will average about 180-240 rounds per hour once you get the hang of it. Once I get the recipes sorted out again for my various handguns and want to produce ammo for them--i.e., feed the 1911s, in both .45ACP and 10mm--the Load-Master is ideal.
Check out those videos. And do a search here on "LoadMaster"--there's lots of us who will help.
Jim H.