I don't have any feedback on the arms, I have never used them. But the article was great with all the different parts available out there.
I did like the quarter panel tech on Tonys car (Karma). I need to swap mine and that will be a big help as I have never doen that before. (trying to decide if I should farm it out or not).
The whole magazine is great. There is something usefull to me in every issue.
Sorry to hijack the thread.