Keeping my ear close to the ground on the Summone fix. I've read just about every post and there are so many contradicting comments.
For the whole part, it's nice and simple to install and so far looks to have a great success rate. Gonna try it on a v12 of a good friend so I can monitor.
Here's my first v12 mod using Crystal 8 diode fix...
http://www.users.on.net/~boros/DMS4%20v12.htm 