Okay here are some Pics and 99YUK sorry about the thread jack. Just back ground info on the drum drilled between the fins one top and bottom every 3-4 inches. I used a very technical measuring device... the uncut top of a tube of gasket maker!!! After drilling the holes I took a dremel with a small cone attachment and chamfered the hole so they wouldnt have any sharp edges. I cleaned the whole drum set up degreased,scraped wiped down and put on new springs-pads-wheel cylinder and of course drums. And yup new brake fluid also.
No worries about the thread jack. That's one of the reasons why I supported this site. People are free to post up what they are doing without fear! That's awesome. For a geek like me to post up some wierd arcane experiment that I'm running on my truck without fear, that's a good environment!
As for the drilled drums, I showed our Old Guy Mech. He's seen this before. (He's an old cat from the 60's) He figures that stopping power is going to be great because the shoes have something extra to bite onto. However, he figures that you should post up in three months or even six months pics of those same shoes. He figures they will wear way faster. But it works. He won't let me do that to my truck because it works too well... without rear antilock's in the winter (which is like 9 months a year up here), they will lock up too easily causing a loss of controll on the snow and ice. But for sunnier climates with dry asphalt and you don't mind replacing shoes more often, it works. I mostly listen to the old guy because, we'll he's older and has plenty of experience.