Good question Frank.
If you look back to the early part of 2009, you'll find two articles in Miscellany about my early improvements, which were condensed by me into something more appropriate for the magazine.
The problem as I see it is that we DIYers are in a minority, and as has been jokingly mentioned in another thread, most Mog owners seem to prefer a nice lunch, unless they are racing nuts of course. Clearly there's a strong emphasis on competition in Miscellany, and there's nothing wrong with that, but much of the balance is taken up by travel articles.
My third submitted feature, which was about fitting the spoiler didn't make the magazine, and so since then I haven't submitted other technical articles. I do know that space in Miscellany is at a premium, and after my initial Concours Spot features, future submissions will be more restricted. I may try another technical feature sometime, but the 'how to' series here on TM don't translate into a magazine article without serious editing. There are too many photos and not enough narrative. The magazine needs the opposite balance.
So that's how I see it. I also know that few technical articles are submitted, due to the preponderance of 'lunchers'. Maybe my planned kingpin job will make a good magazine feature, but it will appear here first, almost in real time.