I vote with those who vote to open up the cylinder throats. I had that done on a Ruger Vaquero 45 Colt that went from pie plate to golf ball size groups after correction.
Put me down as another happy user of Lee Liquid Alox. I dare say I have used it on at least 40,000 rounds in the last 20 years, (maybe twice that--My bookkeeping , especially on my plinkers consists of checking the ammo can and refilling it if low.) I have used it in many applications ranging from 75 grain 38 special plinkers at BB gun velocities, up to a 30-40 170 grain gc at 2300 FPS with good to excellent results. I now use Ben's liquid lube, which is quicker drying, for most of my pistol applications, but for rifle stuff, and the 9mm, I still use LLA.
Larry's experience parallels mine almost exactly. Use it right, one application, then let dry, size and then a second coat. Now one thing I will say, most of the pictures I have seen look to have a little too light a coat. IME, if the boolits don't have a bit of a golden bronze haze on them, you don't have enough. Some place there is a Photo of some Wadcutters, I think made by Ed Harrison, that look just about perfect. If my google foo were better, I'd try to copy it here.
boolits number 3 and 7 are good examples of what I mean, though number 4 is acceptable for low velocity work. (1 and 2 hadn't been lubed yet when this picture was taken, 5 and 6 have Javelina 50-50 and a light coat of Ben's Liquid Lube.