So, I got this I think around 1985, second hand again. This was very cool though, it showed how to make your own turbo loader! Now I still didn't really understand it at this point, but I was able (with the aid of an amazing tape deck) to make a screen grab load at an amazing 6,000 baud! This is microdrive speed; from a NORMAL tapedeck! It just blasted in! I was also able to load data in via a slightly odd pattern so the screen would come in backwards, and even from both directions at once! Normal spectrum turbos were 3,000Baud (with the original ROM routine at 1,500), so I had great fun fiddling with these routines.
I've still to track down the No.1 magazine. I do still have it, but I've no idea where!