Fostex Lawton Mod

I’m looking to start a Lawton Mod project and I’d like to know if anyone has had experience with it. I’ll be using either a TR-X00 or TH-900 mk2, probably the former. I’ve spoken with Mark Lawton and he was very helpful and informative. At this point I’m waiting on availability of a particular cup. Any feedback, thoughts, or comments are appreciated.