I've recently fix 2 consoles with MKI method. Thank God both of them are working fine!
First I've got to thank Richard for this wonderful fixing method.
Then I've got to say these methods are really time consuming and they require a lot of patience.
I have tried Lawdawg0931's method too but it sucks.
It is just fast but the fix won't last long enough.
Here are some notes about my fix:
1) Both of the consoles were dead with error number 0102.
2) None of the 2 consoles booted up the first or the second time. I had to play with the tension of the bolts and/or number of washers and it was really a pain in the butt.
3) For the first one I repaired I used 3 washers (for GPU and CPU). 2 washers would give me 0020. But for the second one, 3 washers and the heatsinks didn't touch the core.
4) What was really bother me was error code 0020 after the fix. I know it's not overheating or anything but if the bolts are too tight then this error pops immediately after the power on. Someone has to discover the root of this error.
5) I didn't use ANY heat method. I just played with the screws until I saw some green lights.
6) I measured the thickness of all the washers, nuts, etc with a vernier caliper and they matched the sizes given in this tutorial.
7) The worst part of the fix was modding the GPU heatsink with took about an hour to complete.

I'm sure that the fixes are lasting fixes because the second one ran really hot (before the cooling mods) and produced artifacts but never froze and never gave me any RRoD. So I'm sure the solder points are pressed together tightly.
9) For the second console, I couldn't find 2cm long screws so I used 2.5cm ones and it later created several problems. IE when I wanted to tight the nuts with a socket wrench, it couldn't catch the nut. So I used another spring + flat washer underneath the lock nut. But I don't have any problem mounting the DVD-Drive.
I suggest anyone do the fix for RRoDed consoles and on new consoles to prevent further problems.
Good luck.