Steve,
Thanks, I'll try that. I'm gonna purchase one from gun parts and try it on the spare. It's funny that my war time production guns have a much better trigger pull.
Just found a 400 a few months ago, really like these pistols.
Here is the link to my war time pistols.
http://www.p38guns.com/Astraindex.htm
I'll look for a copy of that book.
Mark